2564344 has 16 divisors (see below), whose sum is σ = 4875120. Its totient is φ = 1264320.

The previous prime is 2564333. The next prime is 2564347. The reversal of 2564344 is 4434652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2564347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1612 + ... + 2779.

It is an arithmetic number, because the mean of its divisors is an integer number (304695).

2^2564344 is an apocalyptic number.

It is an amenable number.

2564344 is a deficient number, since it is larger than the sum of its proper divisors (2310776).

2564344 is a wasteful number, since it uses less digits than its factorization.

2564344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4470 (or 4466 counting only the distinct ones).

The product of its digits is 11520, while the sum is 28.

The square root of 2564344 is about 1601.3569246111. The cubic root of 2564344 is about 136.8754084209.

Adding to 2564344 its reverse (4434652), we get a palindrome (6998996).

The spelling of 2564344 in words is "two million, five hundred sixty-four thousand, three hundred forty-four".