18038008 has 32 divisors (see below), whose sum is σ = 34871760. Its totient is φ = 8743680.

The previous prime is 18037961. The next prime is 18038021. The reversal of 18038008 is 80083081.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38898 + ... + 39358.

Almost surely, 2^18038008 is an apocalyptic number.

It is an amenable number.

18038008 is a deficient number, since it is larger than the sum of its proper divisors (16833752).

18038008 is a wasteful number, since it uses less digits than its factorization.

18038008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607 (or 603 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 18038008 is about 4247.1176108038. The cubic root of 18038008 is about 262.2584711079.

The spelling of 18038008 in words is "eighteen million, thirty-eight thousand, eight".