18086674 has 16 divisors (see below), whose sum is σ = 29270808. Its totient is φ = 8349952.

The previous prime is 18086647. The next prime is 18086707. The reversal of 18086674 is 47668081.

It can be written as a sum of positive squares in 4 ways, for example, as 17264025 + 822649 = 4155^2 + 907^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3217 + ... + 6820.

Almost surely, 2^18086674 is an apocalyptic number.

18086674 is a deficient number, since it is larger than the sum of its proper divisors (11184134).

18086674 is a wasteful number, since it uses less digits than its factorization.

18086674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10109.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 18086674 is about 4252.8430490673. The cubic root of 18086674 is about 262.4941144561.

The spelling of 18086674 in words is "eighteen million, eighty-six thousand, six hundred seventy-four".