18042160 has 20 divisors (see below), whose sum is σ = 41948208. Its totient is φ = 7216832.

The previous prime is 18042149. The next prime is 18042161. The reversal of 18042160 is 6124081.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (18042161) 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, 112684 + ... + 112843.

Almost surely, 2^18042160 is an apocalyptic number.

18042160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18042160 is an abundant number, since it is smaller than the sum of its proper divisors (23906048).

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

18042160 is a wasteful number, since it uses less digits than its factorization.

18042160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225540 (or 225534 counting only the distinct ones).

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

The square root of 18042160 is about 4247.6063847772. The cubic root of 18042160 is about 262.2785918373.

The spelling of 18042160 in words is "eighteen million, forty-two thousand, one hundred sixty".