18320150 has 24 divisors (see below), whose sum is σ = 34872024. Its totient is φ = 7156800.

The previous prime is 18320117. The next prime is 18320189. The reversal of 18320150 is 5102381.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2111 + ... + 6410.

It is an arithmetic number, because the mean of its divisors is an integer number (1453001).

Almost surely, 2^18320150 is an apocalyptic number.

18320150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18320150 is a deficient number, since it is larger than the sum of its proper divisors (16551874).

18320150 is a wasteful number, since it uses less digits than its factorization.

18320150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8576 (or 8571 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 18320150 is about 4280.2044343699. The cubic root of 18320150 is about 263.6187775175.

The spelling of 18320150 in words is "eighteen million, three hundred twenty thousand, one hundred fifty".