18320050 has 48 divisors (see below), whose sum is σ = 41247360. Its totient is φ = 5909760.

The previous prime is 18320041. The next prime is 18320063. The reversal of 18320050 is 5002381.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4411 + ... + 7489.

It is an arithmetic number, because the mean of its divisors is an integer number (859320).

Almost surely, 2^18320050 is an apocalyptic number.

18320050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18320050 is an abundant number, since it is smaller than the sum of its proper divisors (22927310).

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

18320050 is a wasteful number, since it uses less digits than its factorization.

18320050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3115 (or 3110 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 18320050 is about 4280.1927526690. The cubic root of 18320050 is about 263.6182978649.

The spelling of 18320050 in words is "eighteen million, three hundred twenty thousand, fifty".