18768364 has 6 divisors (see below), whose sum is σ = 32844644. Its totient is φ = 9384180.

The previous prime is 18768359. The next prime is 18768367. The reversal of 18768364 is 46386781.

It is a self number, because there is not a number n which added to its sum of digits gives 18768364.

It is not an unprimeable number, because it can be changed into a prime (18768367) by changing a digit.

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 as a sum of consecutive naturals, namely, 2346042 + ... + 2346049.

Almost surely, 2^18768364 is an apocalyptic number.

It is an amenable number.

18768364 is a deficient number, since it is larger than the sum of its proper divisors (14076280).

18768364 is a wasteful number, since it uses less digits than its factorization.

18768364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4692095 (or 4692093 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 18768364 is about 4332.2469920354. The cubic root of 18768364 is about 265.7513458266.

The spelling of 18768364 in words is "eighteen million, seven hundred sixty-eight thousand, three hundred sixty-four".