42009882 has 16 divisors (see below), whose sum is σ = 85974240. Its totient is φ = 13677552.

The previous prime is 42009859. The next prime is 42009883. The reversal of 42009882 is 28890024.

It is not an unprimeable number, because it can be changed into a prime (42009883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81157 + ... + 81672.

It is an arithmetic number, because the mean of its divisors is an integer number (5373390).

Almost surely, 2^42009882 is an apocalyptic number.

42009882 is an abundant number, since it is smaller than the sum of its proper divisors (43964358).

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

42009882 is a wasteful number, since it uses less digits than its factorization.

42009882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162877.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 42009882 is about 6481.5030664191. The cubic root of 42009882 is about 347.6299243312.

The spelling of 42009882 in words is "forty-two million, nine thousand, eight hundred eighty-two".