256312292 has 12 divisors (see below), whose sum is σ = 448783020. Its totient is φ = 128088576.

The previous prime is 256312229. The next prime is 256312297. The reversal of 256312292 is 292213652.

256312292 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 145347136 + 110965156 = 12056^2 + 10534^2 .

It is not an unprimeable number, because it can be changed into a prime (256312297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7817 + ... + 23952.

It is an arithmetic number, because the mean of its divisors is an integer number (37398585).

Almost surely, 2^256312292 is an apocalyptic number.

It is an amenable number.

256312292 is a deficient number, since it is larger than the sum of its proper divisors (192470728).

256312292 is a wasteful number, since it uses less digits than its factorization.

256312292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33790 (or 33788 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 256312292 is about 16009.7561505477. The cubic root of 256312292 is about 635.2185099570.

The spelling of 256312292 in words is "two hundred fifty-six million, three hundred twelve thousand, two hundred ninety-two".