2644684 has 24 divisors (see below), whose sum is σ = 5473440. Its totient is φ = 1094016.

The previous prime is 2644669. The next prime is 2644687. The reversal of 2644684 is 4864462.

It is a happy number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2644687) 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, 817 + ... + 2440.

It is an arithmetic number, because the mean of its divisors is an integer number (228060).

2^2644684 is an apocalyptic number.

It is an amenable number.

2644684 is an abundant number, since it is smaller than the sum of its proper divisors (2828756).

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

2644684 is a wasteful number, since it uses less digits than its factorization.

2644684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3297 (or 3295 counting only the distinct ones).

The product of its digits is 36864, while the sum is 34.

The square root of 2644684 is about 1626.2484435043. The cubic root of 2644684 is about 138.2901547470.

The spelling of 2644684 in words is "two million, six hundred forty-four thousand, six hundred eighty-four".