256454732 has 24 divisors (see below), whose sum is σ = 453418560. Its totient is φ = 126914000.

The previous prime is 256454689. The next prime is 256454747. The reversal of 256454732 is 237454652.

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, 179003 + ... + 180429.

It is an arithmetic number, because the mean of its divisors is an integer number (18892440).

Almost surely, 2^256454732 is an apocalyptic number.

It is an amenable number.

256454732 is a deficient number, since it is larger than the sum of its proper divisors (196963828).

256454732 is a wasteful number, since it uses less digits than its factorization.

256454732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861 (or 1859 counting only the distinct ones).

The product of its digits is 201600, while the sum is 38.

The square root of 256454732 is about 16014.2040701372. The cubic root of 256454732 is about 635.3361578053.

The spelling of 256454732 in words is "two hundred fifty-six million, four hundred fifty-four thousand, seven hundred thirty-two".