18258082 has 4 divisors (see below), whose sum is σ = 27387126. Its totient is φ = 9129040.

The previous prime is 18258059. The next prime is 18258109. The reversal of 18258082 is 28085281.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18241441 + 16641 = 4271^2 + 129^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4564519 + ... + 4564522.

Almost surely, 2^18258082 is an apocalyptic number.

18258082 is a deficient number, since it is larger than the sum of its proper divisors (9129044).

18258082 is an equidigital number, since it uses as much as digits as its factorization.

18258082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9129043.

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 18258082 is about 4272.9476945079. The cubic root of 18258082 is about 263.3207304051.

The spelling of 18258082 in words is "eighteen million, two hundred fifty-eight thousand, eighty-two".