18840768 has 28 divisors (see below), whose sum is σ = 49850040. Its totient is φ = 6280192.

The previous prime is 18840763. The next prime is 18840791. The reversal of 18840768 is 86704881.

It is not an unprimeable number, because it can be changed into a prime (18840763) 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, 48873 + ... + 49256.

Almost surely, 2^18840768 is an apocalyptic number.

It is an amenable number.

18840768 is an abundant number, since it is smaller than the sum of its proper divisors (31009272).

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

18840768 is an equidigital number, since it uses as much as digits as its factorization.

18840768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98144 (or 98134 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 18840768 is about 4340.5953508707. The cubic root of 18840768 is about 266.0926430276.

The spelling of 18840768 in words is "eighteen million, eight hundred forty thousand, seven hundred sixty-eight".