2644365 has 16 divisors (see below), whose sum is σ = 4377600. Its totient is φ = 1361472.

The previous prime is 2644357. The next prime is 2644381. The reversal of 2644365 is 5634462.

It is not a de Polignac number, because 2644365 - 2³ = 2644357 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2605 + ... + 3474.

It is an arithmetic number, because the mean of its divisors is an integer number (273600).

2^2644365 is an apocalyptic number.

It is an amenable number.

2644365 is a deficient number, since it is larger than the sum of its proper divisors (1733235).

2644365 is a wasteful number, since it uses less digits than its factorization.

2644365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6116.

The product of its digits is 17280, while the sum is 30.

The square root of 2644365 is about 1626.1503620514. The cubic root of 2644365 is about 138.2845943683.

The spelling of 2644365 in words is "two million, six hundred forty-four thousand, three hundred sixty-five".