256727632 has 40 divisors (see below), whose sum is σ = 575338176. Its totient is φ = 108696576.

The previous prime is 256727623. The next prime is 256727651. The reversal of 256727632 is 236727652.

256727632 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

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, 4513 + ... + 23104.

Almost surely, 2^256727632 is an apocalyptic number.

It is an amenable number.

256727632 is an abundant number, since it is smaller than the sum of its proper divisors (318610544).

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

256727632 is a wasteful number, since it uses less digits than its factorization.

256727632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27715 (or 27709 counting only the distinct ones).

The product of its digits is 211680, while the sum is 40.

The square root of 256727632 is about 16022.7223654409. The cubic root of 256727632 is about 635.5614370348.

The spelling of 256727632 in words is "two hundred fifty-six million, seven hundred twenty-seven thousand, six hundred thirty-two".