18240160 has 24 divisors (see below), whose sum is σ = 43092756. Its totient is φ = 7296000.

The previous prime is 18240151. The next prime is 18240161. The reversal of 18240160 is 6104281.

It can be written as a sum of positive squares in 2 ways, for example, as 18215824 + 24336 = 4268^2 + 156^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (18240161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56841 + ... + 57160.

Almost surely, 2^18240160 is an apocalyptic number.

18240160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18240160 is an abundant number, since it is smaller than the sum of its proper divisors (24852596).

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

18240160 is a wasteful number, since it uses less digits than its factorization.

18240160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114016 (or 114008 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 18240160 is about 4270.8500324877. The cubic root of 18240160 is about 263.2345442968.

The spelling of 18240160 in words is "eighteen million, two hundred forty thousand, one hundred sixty".