A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 2434080 can be evenly divided by 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 32 33 40 44 48 55 60 66 80 88 96 110 120 132 160 165 176 220 240 264 330 352 440 461 480 528 660 880 922 1,056 1,320 1,383 1,760 1,844 2,305 2,640 2,766 3,688 4,610 5,071 5,280 5,532 6,915 7,376 9,220 10,142 11,064 13,830 14,752 15,213 18,440 20,284 22,128 25,355 27,660 30,426 36,880 40,568 44,256 50,710 55,320 60,852 73,760 76,065 81,136 101,420 110,640 121,704 152,130 162,272 202,840 221,280 243,408 304,260 405,680 486,816 608,520 811,360 1,217,040 and 2,434,080, with no remainder.
Since 2,434,080 cannot be divided by just 1 and 2,434,080, it is not a prime number.