18463712 has 24 divisors (see below), whose sum is σ = 36499176. Its totient is φ = 9194112.

The previous prime is 18463699. The next prime is 18463721. The reversal of 18463712 is 21736481.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7823 + ... + 9905.

It is an arithmetic number, because the mean of its divisors is an integer number (1520799).

Almost surely, 2^18463712 is an apocalyptic number.

It is an amenable number.

18463712 is a deficient number, since it is larger than the sum of its proper divisors (18035464).

18463712 is a wasteful number, since it uses less digits than its factorization.

18463712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2370 (or 2362 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 18463712 is about 4296.9421685659. The cubic root of 18463712 is about 264.3055843143.

The spelling of 18463712 in words is "eighteen million, four hundred sixty-three thousand, seven hundred twelve".