18672136 has 96 divisors (see below), whose sum is σ = 45144000. Its totient is φ = 7185024.

The previous prime is 18672133. The next prime is 18672187. The reversal of 18672136 is 63127681.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18672131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171250 + ... + 171358.

It is an arithmetic number, because the mean of its divisors is an integer number (470250).

Almost surely, 2^18672136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18672136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22572000).

18672136 is an abundant number, since it is smaller than the sum of its proper divisors (26471864).

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

18672136 is a wasteful number, since it uses less digits than its factorization.

18672136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 160 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 18672136 is about 4321.1267049232. The cubic root of 18672136 is about 265.2963860801.

The spelling of 18672136 in words is "eighteen million, six hundred seventy-two thousand, one hundred thirty-six".