44564 has 12 divisors (see below), whose sum is σ = 84084. Its totient is φ = 20544.

The previous prime is 44563. The next prime is 44579. The reversal of 44564 is 46544.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24964 + 19600 = 158^2 + 140^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377 + ... + 480.

It is an arithmetic number, because the mean of its divisors is an integer number (7007).

2⁴⁴⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

44564 is a deficient number, since it is larger than the sum of its proper divisors (39520).

44564 is a wasteful number, since it uses less digits than its factorization.

44564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874 (or 872 counting only the distinct ones).

The product of its digits is 1920, while the sum is 23.

The square root of 44564 is about 211.1018711428. The cubic root of 44564 is about 35.4536855528.

The spelling of 44564 in words is "forty-four thousand, five hundred sixty-four".