256832760 has 32 divisors (see below), whose sum is σ = 770498640. Its totient is φ = 68488704.

The previous prime is 256832707. The next prime is 256832767. The reversal of 256832760 is 67238652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256832767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1070017 + ... + 1070256.

Almost surely, 2^256832760 is an apocalyptic number.

256832760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256832760 is an abundant number, since it is smaller than the sum of its proper divisors (513665880).

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

256832760 is a wasteful number, since it uses less digits than its factorization.

256832760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140287 (or 2140283 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 256832760 is about 16026.0026207411. The cubic root of 256832760 is about 635.6481777103.

The spelling of 256832760 in words is "two hundred fifty-six million, eight hundred thirty-two thousand, seven hundred sixty".