18065804 has 12 divisors (see below), whose sum is σ = 31644984. Its totient is φ = 9024384.

The previous prime is 18065767. The next prime is 18065809. The reversal of 18065804 is 40856081.

It is not an unprimeable number, because it can be changed into a prime (18065809) 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, 6812 + ... + 9084.

It is an arithmetic number, because the mean of its divisors is an integer number (2637082).

Almost surely, 2^18065804 is an apocalyptic number.

It is an amenable number.

18065804 is a deficient number, since it is larger than the sum of its proper divisors (13579180).

18065804 is a wasteful number, since it uses less digits than its factorization.

18065804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4264 (or 4262 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 18065804 is about 4250.3886881084. The cubic root of 18065804 is about 262.3931126427.

The spelling of 18065804 in words is "eighteen million, sixty-five thousand, eight hundred four".