256358632 has 16 divisors (see below), whose sum is σ = 481946400. Its totient is φ = 127839600.

The previous prime is 256358629. The next prime is 256358639. The reversal of 256358632 is 236853652.

It is a super-2 number, since 2×256358632² = 131439496401822848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (256358639) 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, 39244 + ... + 45307.

It is an arithmetic number, because the mean of its divisors is an integer number (30121650).

Almost surely, 2^256358632 is an apocalyptic number.

It is an amenable number.

256358632 is a deficient number, since it is larger than the sum of its proper divisors (225587768).

256358632 is a wasteful number, since it uses less digits than its factorization.

256358632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84936 (or 84932 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The square root of 256358632 is about 16011.2033276703. The cubic root of 256358632 is about 635.2567891096.

The spelling of 256358632 in words is "two hundred fifty-six million, three hundred fifty-eight thousand, six hundred thirty-two".