564420 has 48 divisors (see below), whose sum is σ = 1653120. Its totient is φ = 143616.

The previous prime is 564419. The next prime is 564437. The reversal of 564420 is 24465.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1176 + ... + 1584.

It is an arithmetic number, because the mean of its divisors is an integer number (34440).

2⁵⁶⁴⁴²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 564420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (826560).

564420 is an abundant number, since it is smaller than the sum of its proper divisors (1088700).

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

564420 is a wasteful number, since it uses less digits than its factorization.

564420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 442 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 564420 is about 751.2789095935. The cubic root of 564420 is about 82.6419960490.

Adding to 564420 its reverse (24465), we get a palindrome (588885).

The spelling of 564420 in words is "five hundred sixty-four thousand, four hundred twenty".