564428 has 6 divisors (see below), whose sum is σ = 987756. Its totient is φ = 282212.

The previous prime is 564419. The next prime is 564437. The reversal of 564428 is 824465.

It is an interprime number because it is at equal distance from previous prime (564419) and next prime (564437).

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 564428.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 564428.

It is an unprimeable number.

564428 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, 70550 + ... + 70557.

It is an arithmetic number, because the mean of its divisors is an integer number (164626).

2⁵⁶⁴⁴²⁸ is an apocalyptic number.

It is an amenable number.

564428 is a deficient number, since it is larger than the sum of its proper divisors (423328).

564428 is a wasteful number, since it uses less digits than its factorization.

564428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141111 (or 141109 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 564428 is about 751.2842338290. The cubic root of 564428 is about 82.6423864986.

The spelling of 564428 in words is "five hundred sixty-four thousand, four hundred twenty-eight".