18324664 has 16 divisors (see below), whose sum is σ = 36167400. Its totient is φ = 8680032.

The previous prime is 18324661. The next prime is 18324667. The reversal of 18324664 is 46642381.

It is an interprime number because it is at equal distance from previous prime (18324661) and next prime (18324667).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18324661) 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, 60127 + ... + 60430.

Almost surely, 2^18324664 is an apocalyptic number.

It is an amenable number.

18324664 is a deficient number, since it is larger than the sum of its proper divisors (17842736).

18324664 is a wasteful number, since it uses less digits than its factorization.

18324664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120582 (or 120578 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 18324664 is about 4280.7317131537. The cubic root of 18324664 is about 263.6404272209.

The spelling of 18324664 in words is "eighteen million, three hundred twenty-four thousand, six hundred sixty-four".