2182018 has 16 divisors (see below), whose sum is σ = 3586680. Its totient is φ = 990976.

The previous prime is 2182009. The next prime is 2182021. The reversal of 2182018 is 8102812.

It can be written as a sum of positive squares in 4 ways, for example, as 2152089 + 29929 = 1467^2 + 173^2 .

It is a super-2 number, since 2×2182018² = 9522405104648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2182018.

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, 121 + ... + 2092.

2^2182018 is an apocalyptic number.

2182018 is a deficient number, since it is larger than the sum of its proper divisors (1404662).

2182018 is a wasteful number, since it uses less digits than its factorization.

2182018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261.

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 2182018 is about 1477.1655289777. The cubic root of 2182018 is about 129.7038227773.

The spelling of 2182018 in words is "two million, one hundred eighty-two thousand, eighteen".