256464652 has 24 divisors (see below), whose sum is σ = 481239360. Its totient is φ = 119159040.

The previous prime is 256464629. The next prime is 256464667.

256464652 is nontrivially palindromic in base 10.

256464652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×256464652² = 131548235450962208, which contains 22 as substring.

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, 18499 + ... + 29242.

It is an arithmetic number, because the mean of its divisors is an integer number (20051640).

Almost surely, 2^256464652 is an apocalyptic number.

It is an amenable number.

256464652 is a deficient number, since it is larger than the sum of its proper divisors (224774708).

256464652 is a wasteful number, since it uses less digits than its factorization.

256464652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47841 (or 47839 counting only the distinct ones).

The product of its digits is 345600, while the sum is 40.

The square root of 256464652 is about 16014.5137921824. The cubic root of 256464652 is about 635.3443495738.

The spelling of 256464652 in words is "two hundred fifty-six million, four hundred sixty-four thousand, six hundred fifty-two".