18094920 has 32 divisors (see below), whose sum is σ = 54285120. Its totient is φ = 4825280.

The previous prime is 18094883. The next prime is 18094939. The reversal of 18094920 is 2949081.

It is a super-2 number, since 2×18094920² = 654852259612800, which contains 22 as substring.

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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75276 + ... + 75515.

It is an arithmetic number, because the mean of its divisors is an integer number (1696410).

Almost surely, 2^18094920 is an apocalyptic number.

18094920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18094920 is an abundant number, since it is smaller than the sum of its proper divisors (36190200).

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

18094920 is a wasteful number, since it uses less digits than its factorization.

18094920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150805 (or 150801 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 18094920 is about 4253.8124077115. The cubic root of 18094920 is about 262.5340001311.

The spelling of 18094920 in words is "eighteen million, ninety-four thousand, nine hundred twenty".