256932472 has 8 divisors (see below), whose sum is σ = 481748400. Its totient is φ = 128466232.

The previous prime is 256932463. The next prime is 256932491. The reversal of 256932472 is 274239652.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16058272 + ... + 16058287.

It is an arithmetic number, because the mean of its divisors is an integer number (60218550).

Almost surely, 2^256932472 is an apocalyptic number.

It is an amenable number.

256932472 is a deficient number, since it is larger than the sum of its proper divisors (224815928).

256932472 is a wasteful number, since it uses less digits than its factorization.

256932472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32116565 (or 32116561 counting only the distinct ones).

The product of its digits is 181440, while the sum is 40.

The square root of 256932472 is about 16029.1132630598. The cubic root of 256932472 is about 635.7304277972.

The spelling of 256932472 in words is "two hundred fifty-six million, nine hundred thirty-two thousand, four hundred seventy-two".