256374264 has 32 divisors (see below), whose sum is σ = 641646720. Its totient is φ = 85363296.

The previous prime is 256374257. The next prime is 256374281. The reversal of 256374264 is 462473652.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18159 + ... + 29025.

It is an arithmetic number, because the mean of its divisors is an integer number (20051460).

Almost surely, 2^256374264 is an apocalyptic number.

256374264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

256374264 is an abundant number, since it is smaller than the sum of its proper divisors (385272456).

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

256374264 is a wasteful number, since it uses less digits than its factorization.

256374264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11859 (or 11855 counting only the distinct ones).

The product of its digits is 241920, while the sum is 39.

The square root of 256374264 is about 16011.6914784166. The cubic root of 256374264 is about 635.2697008812.

The spelling of 256374264 in words is "two hundred fifty-six million, three hundred seventy-four thousand, two hundred sixty-four".