18086386 has 8 divisors (see below), whose sum is σ = 27183024. Its totient is φ = 9025380.

The previous prime is 18086357. The next prime is 18086417. The reversal of 18086386 is 68368081.

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

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, 7600 + ... + 9691.

It is an arithmetic number, because the mean of its divisors is an integer number (3397878).

Almost surely, 2^18086386 is an apocalyptic number.

18086386 is a deficient number, since it is larger than the sum of its proper divisors (9096638).

18086386 is a wasteful number, since it uses less digits than its factorization.

18086386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17816.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 18086386 is about 4252.8091892301. The cubic root of 18086386 is about 262.4927211889.

The spelling of 18086386 in words is "eighteen million, eighty-six thousand, three hundred eighty-six".