BW400CN can be developed in a normal black & white process, but you will probably get rather dense low contrast images, and it'll have the same orange mask as colour c41 (I think I remember reading that it was intended by Kodak mostly to be printed in minilabs on RA4 paper).
Remember C41 films all use silver to create the latent image - all that happens when you develop them in black & white developers is that latent image is developed without triggering the dye production that the colour developer does, and you don't go on to bleach & fix the silver out.
You'll be able to get a scan out of it. Less easy to print in the darkroom on ordinary black & white papers than film without a mask, but perfectly do-able.
There are a couple of other C41 black & white films - Ilford XP2 Super, and Fuji Neopan 400CN - which don't have the orange mask; I think the Fuji version is made for them by Ilford, but that may be internet gossip & without foundation.
Or of course you could get it developed in the process for which it was designed and get almost grainless creamy negatives that scan beautifully