2866688 has 40 divisors (see below), whose sum is σ = 6260760. Its totient is φ = 1300480.

The previous prime is 2866667. The next prime is 2866691. The reversal of 2866688 is 8866682.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 5378 + ... + 5886.

It is an arithmetic number, because the mean of its divisors is an integer number (156519).

2^2866688 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 2866688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3130380).

2866688 is an abundant number, since it is smaller than the sum of its proper divisors (3394072).

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

2866688 is an equidigital number, since it uses as much as digits as its factorization.

2866688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 522 counting only the distinct ones).

The product of its digits is 221184, while the sum is 44.

The square root of 2866688 is about 1693.1296465422. The cubic root of 2866688 is about 142.0561835468.

The spelling of 2866688 in words is "two million, eight hundred sixty-six thousand, six hundred eighty-eight".