18304466436 has 27 divisors (see below), whose sum is σ = 46271675541. Its totient is φ = 6101218224.

The previous prime is 18304466419. The next prime is 18304466447. The reversal of 18304466436 is 63466440381.

It is a happy number.

The square root of 18304466436 is 135294.

It is a perfect power (a square), and thus also a powerful number.

18304466436 is a `hidden beast` number, since 183 + 0 + 4 + 466 + 4 + 3 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 18145706436 + 158760000 = 134706^2 + 12600^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18304466391 and 18304466400.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 800490 + ... + 823038.

Almost surely, 2^18304466436 is an apocalyptic number.

18304466436 is the 135294-th square number.

It is an amenable number.

18304466436 is an abundant number, since it is smaller than the sum of its proper divisors (27967209105).

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

18304466436 is an frugal number, since it uses more digits than its factorization.

18304466436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45108 (or 22554 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 45.

The spelling of 18304466436 in words is "eighteen billion, three hundred four million, four hundred sixty-six thousand, four hundred thirty-six".