42631256 has 16 divisors (see below), whose sum is σ = 81635040. Its totient is φ = 20861920.

The previous prime is 42631243. The next prime is 42631271. The reversal of 42631256 is 65213624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56315 + ... + 57066.

It is an arithmetic number, because the mean of its divisors is an integer number (5102190).

Almost surely, 2^42631256 is an apocalyptic number.

It is an amenable number.

42631256 is a deficient number, since it is larger than the sum of its proper divisors (39003784).

42631256 is a wasteful number, since it uses less digits than its factorization.

42631256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113434 (or 113430 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 42631256 is about 6529.2615202640. The cubic root of 42631256 is about 349.3354901809.

The spelling of 42631256 in words is "forty-two million, six hundred thirty-one thousand, two hundred fifty-six".