256323652 has 18 divisors (see below), whose sum is σ = 485727018. Its totient is φ = 118302912.

The previous prime is 256323631. The next prime is 256323667.

256323652 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 3 ways, for example, as 835396 + 255488256 = 914^2 + 15984^2 .

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

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, 188913 + ... + 190264.

Almost surely, 2^256323652 is an apocalyptic number.

It is an amenable number.

256323652 is a deficient number, since it is larger than the sum of its proper divisors (229403366).

256323652 is a wasteful number, since it uses less digits than its factorization.

256323652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379207 (or 379192 counting only the distinct ones).

The product of its digits is 64800, while the sum is 34.

The square root of 256323652 is about 16010.1109302840. The cubic root of 256323652 is about 635.2278943108.

The spelling of 256323652 in words is "two hundred fifty-six million, three hundred twenty-three thousand, six hundred fifty-two".