256732196 has 24 divisors (see below), whose sum is σ = 527343936. Its totient is φ = 107053920.

The previous prime is 256732183. The next prime is 256732207. The reversal of 256732196 is 691237652.

256732196 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×256732196² = 131822840925964832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122870 + ... + 124941.

It is an arithmetic number, because the mean of its divisors is an integer number (21972664).

Almost surely, 2^256732196 is an apocalyptic number.

It is an amenable number.

256732196 is an abundant number, since it is smaller than the sum of its proper divisors (270611740).

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

256732196 is a wasteful number, since it uses less digits than its factorization.

256732196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247859 (or 247857 counting only the distinct ones).

The product of its digits is 136080, while the sum is 41.

The square root of 256732196 is about 16022.8647875466. The cubic root of 256732196 is about 635.5652032638.

The spelling of 256732196 in words is "two hundred fifty-six million, seven hundred thirty-two thousand, one hundred ninety-six".