18365912 has 16 divisors (see below), whose sum is σ = 35367360. Its totient is φ = 8934624.

The previous prime is 18365911. The next prime is 18365917. The reversal of 18365912 is 21956381.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18365911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30728 + ... + 31319.

It is an arithmetic number, because the mean of its divisors is an integer number (2210460).

Almost surely, 2^18365912 is an apocalyptic number.

It is an amenable number.

18365912 is a deficient number, since it is larger than the sum of its proper divisors (17001448).

18365912 is a wasteful number, since it uses less digits than its factorization.

18365912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62090 (or 62086 counting only the distinct ones).

The product of its digits is 12960, while the sum is 35.

The square root of 18365912 is about 4285.5468729207. The cubic root of 18365912 is about 263.8380932570.

The spelling of 18365912 in words is "eighteen million, three hundred sixty-five thousand, nine hundred twelve".