18450164 has 12 divisors (see below), whose sum is σ = 33075588. Its totient is φ = 9000000.

The previous prime is 18450149. The next prime is 18450167. The reversal of 18450164 is 46105481.

It can be written as a sum of positive squares in 2 ways, for example, as 1227664 + 17222500 = 1108^2 + 4150^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18450167) 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, 56087 + ... + 56414.

It is an arithmetic number, because the mean of its divisors is an integer number (2756299).

Almost surely, 2^18450164 is an apocalyptic number.

It is an amenable number.

18450164 is a deficient number, since it is larger than the sum of its proper divisors (14625424).

18450164 is a wasteful number, since it uses less digits than its factorization.

18450164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112546 (or 112544 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 18450164 is about 4295.3654093686. The cubic root of 18450164 is about 264.2409225562.

The spelling of 18450164 in words is "eighteen million, four hundred fifty thousand, one hundred sixty-four".