A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 4032360 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 18 20 23 24 30 36 40 45 46 60 69 72 90 92 115 120 138 180 184 207 230 276 345 360 414 460 487 552 690 828 920 974 1,035 1,380 1,461 1,656 1,948 2,070 2,435 2,760 2,922 3,896 4,140 4,383 4,870 5,844 7,305 8,280 8,766 9,740 11,201 11,688 14,610 17,532 19,480 21,915 22,402 29,220 33,603 35,064 43,830 44,804 56,005 58,440 67,206 87,660 89,608 100,809 112,010 134,412 168,015 175,320 201,618 224,020 268,824 336,030 403,236 448,040 504,045 672,060 806,472 1,008,090 1,344,120 2,016,180 and 4,032,360, with no remainder.
Since 4,032,360 cannot be divided by just 1 and 4,032,360, it is not a prime number.