18288364 has 12 divisors (see below), whose sum is σ = 32107824. Its totient is φ = 9114704.

The previous prime is 18288359. The next prime is 18288367. The reversal of 18288364 is 46388281.

It is not an unprimeable number, because it can be changed into a prime (18288367) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5944 + ... + 8479.

It is an arithmetic number, because the mean of its divisors is an integer number (2675652).

Almost surely, 2^18288364 is an apocalyptic number.

It is an amenable number.

18288364 is a deficient number, since it is larger than the sum of its proper divisors (13819460).

18288364 is a wasteful number, since it uses less digits than its factorization.

18288364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14744 (or 14742 counting only the distinct ones).

The product of its digits is 73728, while the sum is 40.

The square root of 18288364 is about 4276.4896819705. The cubic root of 18288364 is about 263.4662271418.

The spelling of 18288364 in words is "eighteen million, two hundred eighty-eight thousand, three hundred sixty-four".