256912662 has 16 divisors (see below), whose sum is σ = 514322352. Its totient is φ = 85554720.

The previous prime is 256912657. The next prime is 256912679. The reversal of 256912662 is 266219652.

It is a super-3 number, since 3×256912662³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 256912662.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 13813 + ... + 26544.

It is an arithmetic number, because the mean of its divisors is an integer number (32145147).

Almost surely, 2^256912662 is an apocalyptic number.

256912662 is an abundant number, since it is smaller than the sum of its proper divisors (257409690).

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

256912662 is a wasteful number, since it uses less digits than its factorization.

256912662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41423.

The product of its digits is 77760, while the sum is 39.

The square root of 256912662 is about 16028.4953130355. The cubic root of 256912662 is about 635.7140886876.

The spelling of 256912662 in words is "two hundred fifty-six million, nine hundred twelve thousand, six hundred sixty-two".