18914916 has 12 divisors (see below), whose sum is σ = 44134832. Its totient is φ = 6304968.

The previous prime is 18914893. The next prime is 18914923. The reversal of 18914916 is 61941981.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 788110 + ... + 788133.

Almost surely, 2^18914916 is an apocalyptic number.

It is an amenable number.

18914916 is an abundant number, since it is smaller than the sum of its proper divisors (25219916).

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

18914916 is a wasteful number, since it uses less digits than its factorization.

18914916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576250 (or 1576248 counting only the distinct ones).

The product of its digits is 15552, while the sum is 39.

The square root of 18914916 is about 4349.1281884994. The cubic root of 18914916 is about 266.4412560442.

The spelling of 18914916 in words is "eighteen million, nine hundred fourteen thousand, nine hundred sixteen".