2644013 has 8 divisors (see below), whose sum is σ = 2703360. Its totient is φ = 2585520.

The previous prime is 2644007. The next prime is 2644039. The reversal of 2644013 is 3104462.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2644013 - 2⁸ = 2643757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2644003) 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, 13748 + ... + 13938.

It is an arithmetic number, because the mean of its divisors is an integer number (337920).

2^2644013 is an apocalyptic number.

It is an amenable number.

2644013 is a deficient number, since it is larger than the sum of its proper divisors (59347).

2644013 is a wasteful number, since it uses less digits than its factorization.

2644013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2644013 is about 1626.0421273755. The cubic root of 2644013 is about 138.2784582592.

Adding to 2644013 its reverse (3104462), we get a palindrome (5748475).

The spelling of 2644013 in words is "two million, six hundred forty-four thousand, thirteen".