42008856 has 32 divisors (see below), whose sum is σ = 109589760. Its totient is φ = 13393952.

The previous prime is 42008843. The next prime is 42008881. The reversal of 42008856 is 65880024.

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, 37500 + ... + 38603.

It is an arithmetic number, because the mean of its divisors is an integer number (3424680).

Almost surely, 2^42008856 is an apocalyptic number.

42008856 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

42008856 is an abundant number, since it is smaller than the sum of its proper divisors (67580904).

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

42008856 is a wasteful number, since it uses less digits than its factorization.

42008856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76135 (or 76131 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 42008856 is about 6481.4239176280. The cubic root of 42008856 is about 347.6270942732.

The spelling of 42008856 in words is "forty-two million, eight thousand, eight hundred fifty-six".