2668872 has 32 divisors (see below), whose sum is σ = 6785280. Its totient is φ = 874560.

The previous prime is 2668849. The next prime is 2668877. The reversal of 2668872 is 2788662.

It is a self number, because there is not a number n which added to its sum of digits gives 2668872.

It is not an unprimeable number, because it can be changed into a prime (2668877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553 + ... + 2375.

It is an arithmetic number, because the mean of its divisors is an integer number (212040).

2^2668872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2668872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3392640).

2668872 is an abundant number, since it is smaller than the sum of its proper divisors (4116408).

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

2668872 is a wasteful number, since it uses less digits than its factorization.

2668872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893 (or 1889 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 2668872 is about 1633.6682649792. The cubic root of 2668872 is about 138.7104716552.

The spelling of 2668872 in words is "two million, six hundred sixty-eight thousand, eight hundred seventy-two".