18038084 has 12 divisors (see below), whose sum is σ = 31601808. Its totient is φ = 9009000.

The previous prime is 18038057. The next prime is 18038093. The reversal of 18038084 is 48083081.

It is a self number, because there is not a number n which added to its sum of digits gives 18038084.

It is an unprimeable number.

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, 2759 + ... + 6609.

It is an arithmetic number, because the mean of its divisors is an integer number (2633484).

Almost surely, 2^18038084 is an apocalyptic number.

It is an amenable number.

18038084 is a deficient number, since it is larger than the sum of its proper divisors (13563724).

18038084 is a wasteful number, since it uses less digits than its factorization.

18038084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5026 (or 5024 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 18038084 is about 4247.1265580390. The cubic root of 18038084 is about 262.2588394341.

The spelling of 18038084 in words is "eighteen million, thirty-eight thousand, eighty-four".