18244682 has 4 divisors (see below), whose sum is σ = 27367026. Its totient is φ = 9122340.

The previous prime is 18244679. The next prime is 18244711. The reversal of 18244682 is 28644281.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28644281 = 41 ⋅698641.

It can be written as a sum of positive squares in only one way, i.e., 16654561 + 1590121 = 4081^2 + 1261^2 .

It is a super-2 number, since 2×18244682² = 665736842562248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4561169 + ... + 4561172.

Almost surely, 2^18244682 is an apocalyptic number.

18244682 is a deficient number, since it is larger than the sum of its proper divisors (9122344).

18244682 is an equidigital number, since it uses as much as digits as its factorization.

18244682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9122343.

The product of its digits is 24576, while the sum is 35.

The square root of 18244682 is about 4271.3794024881. The cubic root of 18244682 is about 263.2562957188.

The spelling of 18244682 in words is "eighteen million, two hundred forty-four thousand, six hundred eighty-two".