18918714 has 16 divisors (see below), whose sum is σ = 38213280. Its totient is φ = 6243600.

The previous prime is 18918709. The next prime is 18918727. The reversal of 18918714 is 41781981.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15004 + ... + 16215.

It is an arithmetic number, because the mean of its divisors is an integer number (2388330).

Almost surely, 2^18918714 is an apocalyptic number.

18918714 is an abundant number, since it is smaller than the sum of its proper divisors (19294566).

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

18918714 is a wasteful number, since it uses less digits than its factorization.

18918714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31325.

The product of its digits is 16128, while the sum is 39.

The square root of 18918714 is about 4349.5648058168. The cubic root of 18918714 is about 266.4590881115.

The spelling of 18918714 in words is "eighteen million, nine hundred eighteen thousand, seven hundred fourteen".