A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 4564224 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 64 72 84 96 112 126 128 144 168 192 224 252 256 283 288 336 384 448 504 566 576 672 768 849 896 1,008 1,132 1,152 1,344 1,698 1,792 1,981 2,016 2,264 2,304 2,547 2,688 3,396 3,962 4,032 4,528 5,094 5,376 5,943 6,792 7,924 8,064 9,056 10,188 11,886 13,584 15,848 16,128 17,829 18,112 20,376 23,772 27,168 31,696 35,658 36,224 40,752 47,544 54,336 63,392 71,316 72,448 81,504 95,088 108,672 126,784 142,632 163,008 190,176 217,344 253,568 285,264 326,016 380,352 507,136 570,528 652,032 760,704 1,141,056 1,521,408 2,282,112 and 4,564,224, with no remainder.
Since 4,564,224 cannot be divided by just 1 and 4,564,224, it is not a prime number.