256938700 has 36 divisors (see below), whose sum is σ = 568088640. Its totient is φ = 100834240.

The previous prime is 256938679. The next prime is 256938733. The reversal of 256938700 is 7839652.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18940 + ... + 29539.

It is an arithmetic number, because the mean of its divisors is an integer number (15780240).

Almost surely, 2^256938700 is an apocalyptic number.

256938700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256938700 is an abundant number, since it is smaller than the sum of its proper divisors (311149940).

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

256938700 is a wasteful number, since it uses less digits than its factorization.

256938700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48546 (or 48539 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 256938700 is about 16029.3075333902. The cubic root of 256938700 is about 635.7355644220.

The spelling of 256938700 in words is "two hundred fifty-six million, nine hundred thirty-eight thousand, seven hundred".