18164364 has 24 divisors (see below), whose sum is σ = 44877168. Its totient is φ = 5698560.

The previous prime is 18164351. The next prime is 18164369. The reversal of 18164364 is 46346181.

It is not an unprimeable number, because it can be changed into a prime (18164369) 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, 44317 + ... + 44724.

It is an arithmetic number, because the mean of its divisors is an integer number (1869882).

Almost surely, 2^18164364 is an apocalyptic number.

It is an amenable number.

18164364 is an abundant number, since it is smaller than the sum of its proper divisors (26712804).

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

18164364 is a wasteful number, since it uses less digits than its factorization.

18164364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89065 (or 89063 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 18164364 is about 4261.9671514454. The cubic root of 18164364 is about 262.8694190976.

It can be divided in two parts, 18164 and 364, that added together give a triangular number (18528 = T₁₉₂).

The spelling of 18164364 in words is "eighteen million, one hundred sixty-four thousand, three hundred sixty-four".