256312662 has 8 divisors (see below), whose sum is σ = 512625336. Its totient is φ = 85437552.

The previous prime is 256312657. The next prime is 256312687. The reversal of 256312662 is 266213652.

256312662 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

256312662 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21359383 + ... + 21359394.

It is an arithmetic number, because the mean of its divisors is an integer number (64078167).

Almost surely, 2^256312662 is an apocalyptic number.

256312662 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

256312662 is a wasteful number, since it uses less digits than its factorization.

256312662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42718782.

The product of its digits is 25920, while the sum is 33.

The square root of 256312662 is about 16009.7677059975. The cubic root of 256312662 is about 635.2188156138.

It can be divided in two parts, 2563 and 12662, that added together give a triangular number (15225 = T₁₇₄).

The spelling of 256312662 in words is "two hundred fifty-six million, three hundred twelve thousand, six hundred sixty-two".