18806768 has 40 divisors (see below), whose sum is σ = 37765440. Its totient is φ = 9067520.

The previous prime is 18806759. The next prime is 18806779. The reversal of 18806768 is 86760881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66788 + ... + 67068.

It is an arithmetic number, because the mean of its divisors is an integer number (944136).

Almost surely, 2^18806768 is an apocalyptic number.

It is an amenable number.

18806768 is an abundant number, since it is smaller than the sum of its proper divisors (18958672).

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

18806768 is a wasteful number, since it uses less digits than its factorization.

18806768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 18806768 is about 4336.6770689089. The cubic root of 18806768 is about 265.9324832882.

The spelling of 18806768 in words is "eighteen million, eight hundred six thousand, seven hundred sixty-eight".