The number 2,081,376 can be evenly divided by 1 2 3 4 6 8 9 11 12 16 18 22 24 27 32 33 36 44 48 54 66 72 73 81 88 96 99 108 132 144 146 162 176 198 216 219 264 288 292 297 324 352 396 432 438 528 584 594 648 657 792 803 864 876 891 1,056 1,168 1,188 1,296 1,314 1,584 1,606 1,752 1,782 1,971 2,336 2,376 2,409 2,592 2,628 3,168 3,212 3,504 3,564 3,942 4,752 4,818 5,256 5,913 6,424 7,008 7,128 7,227 7,884 9,504 9,636 10,512 11,826 12,848 14,256 14,454 15,768 19,272 21,024 21,681 23,652 25,696 28,512 28,908 31,536 38,544 43,362 47,304 57,816 63,072 65,043 77,088 86,724 94,608 115,632 130,086 173,448 189,216 231,264 260,172 346,896 520,344 693,792 1,040,688 and 2,081,376, with no remainder.
Since 2,081,376 cannot be divided by just 1 and 2,081,376, it is a composite number.