2644804 has 6 divisors (see below), whose sum is σ = 4628414. Its totient is φ = 1322400.

The previous prime is 2644799. The next prime is 2644823. The reversal of 2644804 is 4084462.

It can be written as a sum of positive squares in only one way, i.e., 2566404 + 78400 = 1602^2 + 280^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330597 + ... + 330604.

2^2644804 is an apocalyptic number.

It is an amenable number.

2644804 is a deficient number, since it is larger than the sum of its proper divisors (1983610).

2644804 is a wasteful number, since it uses less digits than its factorization.

2644804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661205 (or 661203 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 2644804 is about 1626.2853378174. The cubic root of 2644804 is about 138.2922463097.

The spelling of 2644804 in words is "two million, six hundred forty-four thousand, eight hundred four".