18046522 has 16 divisors (see below), whose sum is σ = 29344392. Its totient is φ = 8274240.

The previous prime is 18046487. The next prime is 18046531. The reversal of 18046522 is 22564081.

It can be written as a sum of positive squares in 4 ways, for example, as 13682601 + 4363921 = 3699^2 + 2089^2 .

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, 1872 + ... + 6292.

Almost surely, 2^18046522 is an apocalyptic number.

18046522 is a deficient number, since it is larger than the sum of its proper divisors (11297870).

18046522 is a wasteful number, since it uses less digits than its factorization.

18046522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4593.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 18046522 is about 4248.1198194025. The cubic root of 18046522 is about 262.2997269089.

The spelling of 18046522 in words is "eighteen million, forty-six thousand, five hundred twenty-two".