42056256 has 56 divisors (see below), whose sum is σ = 121395744. Its totient is φ = 12743680.

The previous prime is 42056221. The next prime is 42056263. The reversal of 42056256 is 65265024.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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, 7845 + ... + 12068.

Almost surely, 2^42056256 is an apocalyptic number.

It is an amenable number.

42056256 is an abundant number, since it is smaller than the sum of its proper divisors (79339488).

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

42056256 is a wasteful number, since it uses less digits than its factorization.

42056256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19939 (or 19929 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 42056256 is about 6485.0794906462. The cubic root of 42056256 is about 347.7577915621.

The spelling of 42056256 in words is "forty-two million, fifty-six thousand, two hundred fifty-six".