564442 has 4 divisors (see below), whose sum is σ = 846666. Its totient is φ = 282220.

The previous prime is 564437. The next prime is 564449. The reversal of 564442 is 244465.

564442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 564001 + 441 = 751^2 + 21^2 .

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

564442 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141109 + ... + 141112.

2⁵⁶⁴⁴⁴² is an apocalyptic number.

564442 is a deficient number, since it is larger than the sum of its proper divisors (282224).

564442 is a wasteful number, since it uses less digits than its factorization.

564442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282223.

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

The square root of 564442 is about 751.2935511503. The cubic root of 564442 is about 82.6430697767.

The spelling of 564442 in words is "five hundred sixty-four thousand, four hundred forty-two".