42404008 has 16 divisors (see below), whose sum is σ = 80856000. Its totient is φ = 20842416.

The previous prime is 42403981. The next prime is 42404017. The reversal of 42404008 is 80040424.

It is a self number, because there is not a number n which added to its sum of digits gives 42404008.

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, 44448 + ... + 45391.

It is an arithmetic number, because the mean of its divisors is an integer number (5053500).

Almost surely, 2^42404008 is an apocalyptic number.

It is an amenable number.

42404008 is a deficient number, since it is larger than the sum of its proper divisors (38451992).

42404008 is a wasteful number, since it uses less digits than its factorization.

42404008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89904 (or 89900 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 42404008 is about 6511.8359930207. The cubic root of 42404008 is about 348.7136673309.

The spelling of 42404008 in words is "forty-two million, four hundred four thousand, eight".