2666872 has 16 divisors (see below), whose sum is σ = 5385240. Its totient is φ = 1230816.

The previous prime is 2666863. The next prime is 2666887. The reversal of 2666872 is 2786662.

It is a super-2 number, since 2×2666872² = 14224412528768, 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 3 ways as a sum of consecutive naturals, for example, 12718 + ... + 12925.

2^2666872 is an apocalyptic number.

It is an amenable number.

2666872 is an abundant number, since it is smaller than the sum of its proper divisors (2718368).

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

2666872 is a wasteful number, since it uses less digits than its factorization.

2666872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25662 (or 25658 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 2666872 is about 1633.0560308820. The cubic root of 2666872 is about 138.6758140333.

The spelling of 2666872 in words is "two million, six hundred sixty-six thousand, eight hundred seventy-two".