2116868 has 12 divisors (see below), whose sum is σ = 3989580. Its totient is φ = 976992.

The previous prime is 2116867. The next prime is 2116901. The reversal of 2116868 is 8686112.

2116868 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 473344 + 1643524 = 688^2 + 1282^2 .

It is a super-2 number, since 2×2116868² = 8962260258848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2116867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20303 + ... + 20406.

It is an arithmetic number, because the mean of its divisors is an integer number (332465).

2^2116868 is an apocalyptic number.

It is an amenable number.

2116868 is a deficient number, since it is larger than the sum of its proper divisors (1872712).

2116868 is a wasteful number, since it uses less digits than its factorization.

2116868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40726 (or 40724 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 2116868 is about 1454.9460471097. The cubic root of 2116868 is about 128.3998725425.

The spelling of 2116868 in words is "two million, one hundred sixteen thousand, eight hundred sixty-eight".