564444 has 18 divisors (see below), whose sum is σ = 1426880. Its totient is φ = 188136.

The previous prime is 564437. The next prime is 564449. The reversal of 564444 is 444465.

564444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

564444 is a modest number, since divided by 4444 gives 56 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7804 + ... + 7875.

2⁵⁶⁴⁴⁴⁴ is an apocalyptic number.

It is an amenable number.

564444 is an abundant number, since it is smaller than the sum of its proper divisors (862436).

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

564444 is a wasteful number, since it uses less digits than its factorization.

564444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15689 (or 15684 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 564444 is about 751.2948821867. The cubic root of 564444 is about 82.6431673870.

The spelling of 564444 in words is "five hundred sixty-four thousand, four hundred forty-four".