18083918 has 8 divisors (see below), whose sum is σ = 27637848. Its totient is φ = 8871304.

The previous prime is 18083909. The next prime is 18083921. The reversal of 18083918 is 81938081.

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

It is a Curzon number.

It is a congruent number.

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, 85196 + ... + 85407.

It is an arithmetic number, because the mean of its divisors is an integer number (3454731).

Almost surely, 2^18083918 is an apocalyptic number.

18083918 is a deficient number, since it is larger than the sum of its proper divisors (9553930).

18083918 is a wasteful number, since it uses less digits than its factorization.

18083918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170658.

The product of its (nonzero) digits is 13824, while the sum is 38.

The square root of 18083918 is about 4252.5190181820. The cubic root of 18083918 is about 262.4807810570.

The spelling of 18083918 in words is "eighteen million, eighty-three thousand, nine hundred eighteen".