256636060 has 24 divisors (see below), whose sum is σ = 540373680. Its totient is φ = 102380544.

The previous prime is 256636043. The next prime is 256636067. The reversal of 256636060 is 60636652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256636067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9349 + ... + 24508.

It is an arithmetic number, because the mean of its divisors is an integer number (22515570).

Almost surely, 2^256636060 is an apocalyptic number.

256636060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256636060 is an abundant number, since it is smaller than the sum of its proper divisors (283737620).

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

256636060 is a wasteful number, since it uses less digits than its factorization.

256636060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34245 (or 34243 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 256636060 is about 16019.8645437469. The cubic root of 256636060 is about 635.4858620599.

The spelling of 256636060 in words is "two hundred fifty-six million, six hundred thirty-six thousand, sixty".