18054120 has 64 divisors (see below), whose sum is σ = 61902720. Its totient is φ = 4126464.

The previous prime is 18054097. The next prime is 18054133. The reversal of 18054120 is 2145081.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9907 + ... + 11586.

It is an arithmetic number, because the mean of its divisors is an integer number (967230).

Almost surely, 2^18054120 is an apocalyptic number.

18054120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18054120 is an abundant number, since it is smaller than the sum of its proper divisors (43848600).

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

18054120 is a wasteful number, since it uses less digits than its factorization.

18054120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21514 (or 21510 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 18054120 is about 4249.0140032718. The cubic root of 18054120 is about 262.3365331459.

The spelling of 18054120 in words is "eighteen million, fifty-four thousand, one hundred twenty".