18304668244 has 6 divisors (see below), whose sum is σ = 32033169434. Its totient is φ = 9152334120.

The previous prime is 18304668241. The next prime is 18304668271. The reversal of 18304668244 is 44286640381.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11549800900 + 6754867344 = 107470^2 + 82188^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18304668194 and 18304668203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18304668241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2288083527 + ... + 2288083534.

Almost surely, 2^18304668244 is an apocalyptic number.

It is an amenable number.

18304668244 is a deficient number, since it is larger than the sum of its proper divisors (13728501190).

18304668244 is a wasteful number, since it uses less digits than its factorization.

18304668244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4576167065 (or 4576167063 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 46.

The spelling of 18304668244 in words is "eighteen billion, three hundred four million, six hundred sixty-eight thousand, two hundred forty-four".