18339120 has 60 divisors (see below), whose sum is σ = 61591296. Its totient is φ = 4890240.

The previous prime is 18339089. The next prime is 18339127. The reversal of 18339120 is 2193381.

It is a tau number, because it is divible by the number of its divisors (60).

It is not an unprimeable number, because it can be changed into a prime (18339127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12016 + ... + 13455.

Almost surely, 2^18339120 is an apocalyptic number.

18339120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18339120 is an abundant number, since it is smaller than the sum of its proper divisors (43252176).

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

18339120 is a wasteful number, since it uses less digits than its factorization.

18339120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25490 (or 25481 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 18339120 is about 4282.4198766585. The cubic root of 18339120 is about 263.7097360727.

The spelling of 18339120 in words is "eighteen million, three hundred thirty-nine thousand, one hundred twenty".