2118618 has 12 divisors (see below), whose sum is σ = 4590378. Its totient is φ = 706200.

The previous prime is 2118601. The next prime is 2118629. The reversal of 2118618 is 8168112.

It can be written as a sum of positive squares in only one way, i.e., 1505529 + 613089 = 1227^2 + 783^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2118591 and 2118600.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58833 + ... + 58868.

2^2118618 is an apocalyptic number.

2118618 is an abundant number, since it is smaller than the sum of its proper divisors (2471760).

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

2118618 is a wasteful number, since it uses less digits than its factorization.

2118618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117709 (or 117706 counting only the distinct ones).

The product of its digits is 768, while the sum is 27.

The square root of 2118618 is about 1455.5473197392. The cubic root of 2118618 is about 128.4352452230.

The spelling of 2118618 in words is "two million, one hundred eighteen thousand, six hundred eighteen".