18683768 has 16 divisors (see below), whose sum is σ = 35084880. Its totient is φ = 9327808.

The previous prime is 18683767. The next prime is 18683773. The reversal of 18683768 is 86738681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18683767) 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 in 3 ways as a sum of consecutive naturals, for example, 5780 + ... + 8412.

It is an arithmetic number, because the mean of its divisors is an integer number (2192805).

Almost surely, 2^18683768 is an apocalyptic number.

It is an amenable number.

18683768 is a deficient number, since it is larger than the sum of its proper divisors (16401112).

18683768 is a wasteful number, since it uses less digits than its factorization.

18683768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3526 (or 3522 counting only the distinct ones).

The product of its digits is 387072, while the sum is 47.

The square root of 18683768 is about 4322.4724406293. The cubic root of 18683768 is about 265.3514643525.

The spelling of 18683768 in words is "eighteen million, six hundred eighty-three thousand, seven hundred sixty-eight".