18304630348 has 24 divisors (see below), whose sum is σ = 32663529360. Its totient is φ = 8973026880.

The previous prime is 18304630319. The next prime is 18304630349. The reversal of 18304630348 is 84303640381.

It is a super-2 number, since 2×18304630348² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18304630348.

It is not an unprimeable number, because it can be changed into a prime (18304630349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15943 + ... + 191998.

It is an arithmetic number, because the mean of its divisors is an integer number (1360980390).

Almost surely, 2^18304630348 is an apocalyptic number.

It is an amenable number.

18304630348 is a deficient number, since it is larger than the sum of its proper divisors (14358899012).

18304630348 is a wasteful number, since it uses less digits than its factorization.

18304630348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208377 (or 208375 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 18304630348 in words is "eighteen billion, three hundred four million, six hundred thirty thousand, three hundred forty-eight".