256755982 has 24 divisors (see below), whose sum is σ = 448604136. Its totient is φ = 109893168.

The previous prime is 256755979. The next prime is 256755991. The reversal of 256755982 is 289557652.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108888 + ... + 111220.

It is an arithmetic number, because the mean of its divisors is an integer number (18691839).

Almost surely, 2^256755982 is an apocalyptic number.

256755982 is a deficient number, since it is larger than the sum of its proper divisors (191848154).

256755982 is a wasteful number, since it uses less digits than its factorization.

256755982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3472 (or 3465 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 49.

The square root of 256755982 is about 16023.6070221408. The cubic root of 256755982 is about 635.5848308334.

The spelling of 256755982 in words is "two hundred fifty-six million, seven hundred fifty-five thousand, nine hundred eighty-two".