18364790 has 8 divisors (see below), whose sum is σ = 33056640. Its totient is φ = 7345912.

The previous prime is 18364783. The next prime is 18364799. The reversal of 18364790 is 9746381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18364799) 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, 918230 + ... + 918249.

It is an arithmetic number, because the mean of its divisors is an integer number (4132080).

Almost surely, 2^18364790 is an apocalyptic number.

18364790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18364790 is a deficient number, since it is larger than the sum of its proper divisors (14691850).

18364790 is a wasteful number, since it uses less digits than its factorization.

18364790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836486.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 18364790 is about 4285.4159658078. The cubic root of 18364790 is about 263.8327203980.

The spelling of 18364790 in words is "eighteen million, three hundred sixty-four thousand, seven hundred ninety".