18532808 has 16 divisors (see below), whose sum is σ = 39713280. Its totient is φ = 7942608.

The previous prime is 18532807. The next prime is 18532831. The reversal of 18532808 is 80823581.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (18532807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165416 + ... + 165527.

It is an arithmetic number, because the mean of its divisors is an integer number (2482080).

Almost surely, 2^18532808 is an apocalyptic number.

It is an amenable number.

18532808 is an abundant number, since it is smaller than the sum of its proper divisors (21180472).

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

18532808 is a wasteful number, since it uses less digits than its factorization.

18532808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330956 (or 330952 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 18532808 is about 4304.9747966742. The cubic root of 18532808 is about 264.6348739130.

The spelling of 18532808 in words is "eighteen million, five hundred thirty-two thousand, eight hundred eight".