The number 1,570,464 can be evenly divided by 1 2 3 4 6 7 8 9 12 14 16 18 19 21 24 28 32 36 38 41 42 48 56 57 63 72 76 82 84 96 112 114 123 126 133 144 152 164 168 171 224 228 246 252 266 287 288 304 328 336 342 369 399 456 492 504 532 574 608 656 672 684 738 779 798 861 912 984 1,008 1,064 1,148 1,197 1,312 1,368 1,476 1,558 1,596 1,722 1,824 1,968 2,016 2,128 2,296 2,337 2,394 2,583 2,736 2,952 3,116 3,192 3,444 3,936 4,256 4,592 4,674 4,788 5,166 5,453 5,472 5,904 6,232 6,384 6,888 7,011 9,184 9,348 9,576 10,332 10,906 11,808 12,464 12,768 13,776 14,022 16,359 18,696 19,152 20,664 21,812 24,928 27,552 28,044 32,718 37,392 38,304 41,328 43,624 49,077 56,088 65,436 74,784 82,656 87,248 98,154 112,176 130,872 174,496 196,308 224,352 261,744 392,616 523,488 785,232 and 1,570,464, with no remainder.
Since 1,570,464 cannot be divided by just 1 and 1,570,464, it is a composite number.