A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 4162824 can be evenly divided by 1 2 3 4 6 8 9 12 17 18 19 24 34 36 38 51 57 68 72 76 102 114 136 152 153 171 179 204 228 306 323 342 358 408 456 537 612 646 684 716 969 1,074 1,224 1,292 1,368 1,432 1,611 1,938 2,148 2,584 2,907 3,043 3,222 3,401 3,876 4,296 5,814 6,086 6,444 6,802 7,752 9,129 10,203 11,628 12,172 12,888 13,604 18,258 20,406 23,256 24,344 27,208 27,387 30,609 36,516 40,812 54,774 57,817 61,218 73,032 81,624 109,548 115,634 122,436 173,451 219,096 231,268 244,872 346,902 462,536 520,353 693,804 1,040,706 1,387,608 2,081,412 and 4,162,824, with no remainder.
Since 4,162,824 cannot be divided by just 1 and 4,162,824, it is not a prime number.