2564044 has 12 divisors (see below), whose sum is σ = 5128144. Its totient is φ = 1098864.

The previous prime is 2564039. The next prime is 2564053. The reversal of 2564044 is 4404652.

2564044 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45759 + ... + 45814.

2^2564044 is an apocalyptic number.

It is an amenable number.

2564044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2564044 is a wasteful number, since it uses less digits than its factorization.

2564044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91584 (or 91582 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2564044 is about 1601.2632513113. The cubic root of 2564044 is about 136.8700705744.

Adding to 2564044 its reverse (4404652), we get a palindrome (6968696).

The spelling of 2564044 in words is "two million, five hundred sixty-four thousand, forty-four".