A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 4584384 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 64 72 84 96 108 112 126 144 168 189 192 216 224 252 288 336 378 379 432 448 504 576 672 756 758 864 1,008 1,137 1,344 1,512 1,516 1,728 2,016 2,274 2,653 3,024 3,032 3,411 4,032 4,548 5,306 6,048 6,064 6,822 7,959 9,096 10,233 10,612 12,096 12,128 13,644 15,918 18,192 20,466 21,224 23,877 24,256 27,288 31,836 36,384 40,932 42,448 47,754 54,576 63,672 71,631 72,768 81,864 84,896 95,508 109,152 127,344 143,262 163,728 169,792 191,016 218,304 254,688 286,524 327,456 382,032 509,376 573,048 654,912 764,064 1,146,096 1,528,128 2,292,192 and 4,584,384, with no remainder.
Since 4,584,384 cannot be divided by just 1 and 4,584,384, it is not a prime number.