256879344 has 40 divisors (see below), whose sum is σ = 668846080. Its totient is φ = 84950208.

The previous prime is 256879331. The next prime is 256879379. The reversal of 256879344 is 443978652.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 256879293 and 256879302.

It is a congruent number.

It is an unprimeable number.

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, 14974 + ... + 27165.

It is an arithmetic number, because the mean of its divisors is an integer number (16721152).

Almost surely, 2^256879344 is an apocalyptic number.

256879344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

256879344 is an abundant number, since it is smaller than the sum of its proper divisors (411966736).

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

256879344 is a wasteful number, since it uses less digits than its factorization.

256879344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42277 (or 42271 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The square root of 256879344 is about 16027.4559428501. The cubic root of 256879344 is about 635.6866064069.

The spelling of 256879344 in words is "two hundred fifty-six million, eight hundred seventy-nine thousand, three hundred forty-four".