564721024 has 128 divisors (see below), whose sum is σ = 1365004800. Its totient is φ = 227487744.

The previous prime is 564721013. The next prime is 564721057. The reversal of 564721024 is 420127465.

It is a tau number, because it is divible by the number of its divisors (128).

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, 1380532 + ... + 1380940.

It is an arithmetic number, because the mean of its divisors is an integer number (10664100).

Almost surely, 2^564721024 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 564721024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (682502400).

564721024 is an abundant number, since it is smaller than the sum of its proper divisors (800283776).

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

564721024 is a wasteful number, since it uses less digits than its factorization.

564721024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 564721024 is about 23763.8596191780. The cubic root of 564721024 is about 826.5668534825.

Adding to 564721024 its reverse (420127465), we get a palindrome (984848489).

The spelling of 564721024 in words is "five hundred sixty-four million, seven hundred twenty-one thousand, twenty-four".