256949652 has 24 divisors (see below), whose sum is σ = 625617216. Its totient is φ = 81925888.

The previous prime is 256949647. The next prime is 256949663.

256949652 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×256949652² = 132046247325842208, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465213 + ... + 465764.

It is an arithmetic number, because the mean of its divisors is an integer number (26067384).

Almost surely, 2^256949652 is an apocalyptic number.

It is an amenable number.

256949652 is an abundant number, since it is smaller than the sum of its proper divisors (368667564).

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

256949652 is a wasteful number, since it uses less digits than its factorization.

256949652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931007 (or 931005 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 48.

The square root of 256949652 is about 16029.6491539896. The cubic root of 256949652 is about 635.7445970265.

The spelling of 256949652 in words is "two hundred fifty-six million, nine hundred forty-nine thousand, six hundred fifty-two".