18332164 has 6 divisors (see below), whose sum is σ = 32081294. Its totient is φ = 9166080.

The previous prime is 18332143. The next prime is 18332177. The reversal of 18332164 is 46123381.

It can be written as a sum of positive squares in only one way, i.e., 14364100 + 3968064 = 3790^2 + 1992^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2291517 + ... + 2291524.

Almost surely, 2^18332164 is an apocalyptic number.

It is an amenable number.

18332164 is a deficient number, since it is larger than the sum of its proper divisors (13749130).

18332164 is a wasteful number, since it uses less digits than its factorization.

18332164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4583045 (or 4583043 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 18332164 is about 4281.6076419962. The cubic root of 18332164 is about 263.6763902906.

It can be divided in two parts, 18332 and 164, that added together give a square (18496 = 136²).

The spelling of 18332164 in words is "eighteen million, three hundred thirty-two thousand, one hundred sixty-four".