18364344 has 16 divisors (see below), whose sum is σ = 45910920. Its totient is φ = 6121440.

The previous prime is 18364343. The next prime is 18364387. The reversal of 18364344 is 44346381.

It is a happy number.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18364343) 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, 382567 + ... + 382614.

Almost surely, 2^18364344 is an apocalyptic number.

It is an amenable number.

18364344 is an abundant number, since it is smaller than the sum of its proper divisors (27546576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18364344 is a wasteful number, since it uses less digits than its factorization.

18364344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765190 (or 765186 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 18364344 is about 4285.3639285363. The cubic root of 18364344 is about 263.8305846018.

The spelling of 18364344 in words is "eighteen million, three hundred sixty-four thousand, three hundred forty-four".