18690934 has 8 divisors (see below), whose sum is σ = 28055160. Its totient is φ = 9339216.

The previous prime is 18690929. The next prime is 18690937. The reversal of 18690934 is 43909681.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18690937) 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, 3057 + ... + 6835.

It is an arithmetic number, because the mean of its divisors is an integer number (3506895).

Almost surely, 2^18690934 is an apocalyptic number.

18690934 is a deficient number, since it is larger than the sum of its proper divisors (9364226).

18690934 is a wasteful number, since it uses less digits than its factorization.

18690934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6254.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 18690934 is about 4323.3012848979. The cubic root of 18690934 is about 265.3853844473.

The spelling of 18690934 in words is "eighteen million, six hundred ninety thousand, nine hundred thirty-four".