18642160 has 40 divisors (see below), whose sum is σ = 44747136. Its totient is φ = 7215360.

The previous prime is 18642133. The next prime is 18642163. The reversal of 18642160 is 6124681.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18642163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1279 + ... + 6238.

Almost surely, 2^18642160 is an apocalyptic number.

18642160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18642160 is an abundant number, since it is smaller than the sum of its proper divisors (26104976).

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

18642160 is a wasteful number, since it uses less digits than its factorization.

18642160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7561 (or 7555 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 18642160 is about 4317.6567719077. The cubic root of 18642160 is about 265.1543422722.

The spelling of 18642160 in words is "eighteen million, six hundred forty-two thousand, one hundred sixty".