18868976 has 40 divisors (see below), whose sum is σ = 43985280. Its totient is φ = 7660224.

The previous prime is 18868973. The next prime is 18868999. The reversal of 18868976 is 67986881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18868973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2306 + ... + 6561.

It is an arithmetic number, because the mean of its divisors is an integer number (1099632).

Almost surely, 2^18868976 is an apocalyptic number.

18868976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18868976 is an abundant number, since it is smaller than the sum of its proper divisors (25116304).

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

18868976 is a wasteful number, since it uses less digits than its factorization.

18868976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8901 (or 8895 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 53.

The square root of 18868976 is about 4343.8434594262. The cubic root of 18868976 is about 266.2253729049.

The spelling of 18868976 in words is "eighteen million, eight hundred sixty-eight thousand, nine hundred seventy-six".