18220182 has 16 divisors (see below), whose sum is σ = 36728832. Its totient is φ = 6025320.

The previous prime is 18220171. The next prime is 18220193. The reversal of 18220182 is 28102281.

It is an interprime number because it is at equal distance from previous prime (18220171) and next prime (18220193).

It is a super-2 number, since 2×18220182² = 663950064226248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11194 + ... + 12717.

It is an arithmetic number, because the mean of its divisors is an integer number (2295552).

Almost surely, 2^18220182 is an apocalyptic number.

18220182 is an abundant number, since it is smaller than the sum of its proper divisors (18508650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18220182 is a wasteful number, since it uses less digits than its factorization.

18220182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24043.

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 18220182 is about 4268.5105130478. The cubic root of 18220182 is about 263.1384044077.

The spelling of 18220182 in words is "eighteen million, two hundred twenty thousand, one hundred eighty-two".