18534164 has 24 divisors (see below), whose sum is σ = 35622048. Its totient is φ = 8367840.

The previous prime is 18534163. The next prime is 18534167. The reversal of 18534164 is 46143581.

It is a self number, because there is not a number n which added to its sum of digits gives 18534164.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18534163) 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, 5567 + ... + 8249.

It is an arithmetic number, because the mean of its divisors is an integer number (1484252).

Almost surely, 2^18534164 is an apocalyptic number.

It is an amenable number.

18534164 is a deficient number, since it is larger than the sum of its proper divisors (17087884).

18534164 is a wasteful number, since it uses less digits than its factorization.

18534164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2855 (or 2853 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 18534164 is about 4305.1322860047. The cubic root of 18534164 is about 264.6413279833.

The spelling of 18534164 in words is "eighteen million, five hundred thirty-four thousand, one hundred sixty-four".