18690914 has 8 divisors (see below), whose sum is σ = 30585168. Its totient is φ = 8495860.

The previous prime is 18690911. The next prime is 18690929. The reversal of 18690914 is 41909681.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18690911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424772 + ... + 424815.

It is an arithmetic number, because the mean of its divisors is an integer number (3823146).

Almost surely, 2^18690914 is an apocalyptic number.

18690914 is a deficient number, since it is larger than the sum of its proper divisors (11894254).

18690914 is a wasteful number, since it uses less digits than its factorization.

18690914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849600.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 18690914 is about 4323.2989718501. The cubic root of 18690914 is about 265.3852897898.

The spelling of 18690914 in words is "eighteen million, six hundred ninety thousand, nine hundred fourteen".