1410 has some competition in the all-sports space, IIRC. I want to say 1040 is all sports, but I stand to be corrected. My impression is that 1410 (CFUN or whatever it is) has been really struggling. The last time I listened for any length of time was a few years back driving up from Seattle. At that time, they weren't sports but it was a painfully lame talk or perhaps news/talk format.
You are correct 1040 is also sports own by the same company. One is FOX sports and the other is ESPN.