564531428 has 12 divisors (see below), whose sum is σ = 988466220. Its totient is φ = 282112512.

The previous prime is 564531377. The next prime is 564531433. The reversal of 564531428 is 824135465.

It can be written as a sum of positive squares in 2 ways, for example, as 434388964 + 130142464 = 20842^2 + 11408^2 .

It is a junction number, because it is equal to n+sod(n) for n = 564531391 and 564531400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29801 + ... + 44912.

It is an arithmetic number, because the mean of its divisors is an integer number (82372185).

Almost surely, 2^564531428 is an apocalyptic number.

It is an amenable number.

564531428 is a deficient number, since it is larger than the sum of its proper divisors (423934792).

564531428 is a wasteful number, since it uses less digits than its factorization.

564531428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76606 (or 76604 counting only the distinct ones).

The product of its digits is 115200, while the sum is 38.

The square root of 564531428 is about 23759.8701174901. The cubic root of 564531428 is about 826.4743409534.

It can be divided in two parts, 5645 and 31428, that added together give a palindrome (37073).

The spelling of 564531428 in words is "five hundred sixty-four million, five hundred thirty-one thousand, four hundred twenty-eight".