256271712 has 24 divisors (see below), whose sum is σ = 672713496. Its totient is φ = 85423872.

The previous prime is 256271707. The next prime is 256271737. The reversal of 256271712 is 217172652.

It is a tau number, because it is divible by the number of its divisors (24).

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 3 ways as a sum of consecutive naturals, for example, 1334653 + ... + 1334844.

It is an arithmetic number, because the mean of its divisors is an integer number (28029729).

Almost surely, 2^256271712 is an apocalyptic number.

It is an amenable number.

256271712 is an abundant number, since it is smaller than the sum of its proper divisors (416441784).

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

256271712 is a wasteful number, since it uses less digits than its factorization.

256271712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2669510 (or 2669502 counting only the distinct ones).

The product of its digits is 11760, while the sum is 33.

The square root of 256271712 is about 16008.4887481611. The cubic root of 256271712 is about 635.1849850626.

The spelling of 256271712 in words is "two hundred fifty-six million, two hundred seventy-one thousand, seven hundred twelve".