2444644 has 12 divisors (see below), whose sum is σ = 4289404. Its totient is φ = 1219104.

The previous prime is 2444639. The next prime is 2444653. The reversal of 2444644 is 4464442.

It can be written as a sum of positive squares in 2 ways, for example, as 831744 + 1612900 = 912^2 + 1270^2 .

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, 1954 + ... + 2950.

2^2444644 is an apocalyptic number.

It is an amenable number.

2444644 is a deficient number, since it is larger than the sum of its proper divisors (1844760).

2444644 is a wasteful number, since it uses less digits than its factorization.

2444644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614 (or 1612 counting only the distinct ones).

The product of its digits is 12288, while the sum is 28.

The square root of 2444644 is about 1563.5357367198. The cubic root of 2444644 is about 134.7116662781.

The spelling of 2444644 in words is "two million, four hundred forty-four thousand, six hundred forty-four".