18039304 has 16 divisors (see below), whose sum is σ = 33868800. Its totient is φ = 9007632.

The previous prime is 18039299. The next prime is 18039311. The reversal of 18039304 is 40393081.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10729 + ... + 12295.

It is an arithmetic number, because the mean of its divisors is an integer number (2116800).

Almost surely, 2^18039304 is an apocalyptic number.

It is an amenable number.

18039304 is a deficient number, since it is larger than the sum of its proper divisors (15829496).

18039304 is a wasteful number, since it uses less digits than its factorization.

18039304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012 (or 3008 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 18039304 is about 4247.2701821288. The cubic root of 18039304 is about 262.2647518982.

The spelling of 18039304 in words is "eighteen million, thirty-nine thousand, three hundred four".