1264672 has 12 divisors (see below), whose sum is σ = 2489886. Its totient is φ = 632320.

The previous prime is 1264667. The next prime is 1264687. The reversal of 1264672 is 2764621.

It can be written as a sum of positive squares in only one way, i.e., 1263376 + 1296 = 1124^2 + 36^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1264672.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19729 + ... + 19792.

2^1264672 is an apocalyptic number.

It is an amenable number.

1264672 is a deficient number, since it is larger than the sum of its proper divisors (1225214).

1264672 is an equidigital number, since it uses as much as digits as its factorization.

1264672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39531 (or 39523 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 1264672 is about 1124.5763646814. The cubic root of 1264672 is about 108.1415610527.

It can be divided in two parts, 1264 and 672, that added together give a square (1936 = 44²).

The spelling of 1264672 in words is "one million, two hundred sixty-four thousand, six hundred seventy-two".