18330152 has 8 divisors (see below), whose sum is σ = 34369050. Its totient is φ = 9165072.

The previous prime is 18330139. The next prime is 18330163. The reversal of 18330152 is 25103381.

It can be written as a sum of positive squares in only one way, i.e., 11115556 + 7214596 = 3334^2 + 2686^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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, 1145627 + ... + 1145642.

Almost surely, 2^18330152 is an apocalyptic number.

It is an amenable number.

18330152 is a deficient number, since it is larger than the sum of its proper divisors (16038898).

18330152 is a wasteful number, since it uses less digits than its factorization.

18330152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291275 (or 2291271 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 18330152 is about 4281.3726770745. The cubic root of 18330152 is about 263.6667435606. Note that the first 3 decimals are identical.

The spelling of 18330152 in words is "eighteen million, three hundred thirty thousand, one hundred fifty-two".