42990888 has 32 divisors (see below), whose sum is σ = 108488160. Its totient is φ = 14195520.

The previous prime is 42990877. The next prime is 42990889. The reversal of 42990888 is 88809924.

It is not an unprimeable number, because it can be changed into a prime (42990889) 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, 5803 + ... + 10938.

It is an arithmetic number, because the mean of its divisors is an integer number (3390255).

Almost surely, 2^42990888 is an apocalyptic number.

It is an amenable number.

42990888 is an abundant number, since it is smaller than the sum of its proper divisors (65497272).

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

42990888 is a wasteful number, since it uses less digits than its factorization.

42990888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16857 (or 16853 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 48.

The square root of 42990888 is about 6556.7437040043. The cubic root of 42990888 is about 350.3150578074.

The spelling of 42990888 in words is "forty-two million, nine hundred ninety thousand, eight hundred eighty-eight".