1257264 has 30 divisors (see below), whose sum is σ = 3518996. Its totient is φ = 419040.

The previous prime is 1257253. The next prime is 1257281. The reversal of 1257264 is 4627521.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4222 + ... + 4509.

2^1257264 is an apocalyptic number.

It is an amenable number.

1257264 is an abundant number, since it is smaller than the sum of its proper divisors (2261732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1257264 is a wasteful number, since it uses less digits than its factorization.

1257264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8745 (or 8736 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 1257264 is about 1121.2778424637. The cubic root of 1257264 is about 107.9299957862.

It can be divided in two parts, 1257 and 264, that added together give a square (1521 = 39²).

The spelling of 1257264 in words is "one million, two hundred fifty-seven thousand, two hundred sixty-four".