256432372 has 24 divisors (see below), whose sum is σ = 529410560. Its totient is φ = 106354080.

The previous prime is 256432331. The next prime is 256432373. The reversal of 256432372 is 273234652.

It is a super-2 number, since 2×256432372² = 131515122819092768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256432373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146847 + ... + 148582.

Almost surely, 2^256432372 is an apocalyptic number.

It is an amenable number.

256432372 is an abundant number, since it is smaller than the sum of its proper divisors (272978188).

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

256432372 is a wasteful number, since it uses less digits than its factorization.

256432372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295471 (or 295469 counting only the distinct ones).

The product of its digits is 60480, while the sum is 34.

The square root of 256432372 is about 16013.5059246874. The cubic root of 256432372 is about 635.3176925200.

The spelling of 256432372 in words is "two hundred fifty-six million, four hundred thirty-two thousand, three hundred seventy-two".