564527440 has 20 divisors (see below), whose sum is σ = 1312526484. Its totient is φ = 225810944.

The previous prime is 564527429. The next prime is 564527441. The reversal of 564527440 is 44725465.

It can be written as a sum of positive squares in 2 ways, for example, as 386358336 + 178169104 = 19656^2 + 13348^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 564527440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564527441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3528217 + ... + 3528376.

Almost surely, 2^564527440 is an apocalyptic number.

It is an amenable number.

564527440 is an abundant number, since it is smaller than the sum of its proper divisors (747999044).

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

564527440 is a wasteful number, since it uses less digits than its factorization.

564527440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7056606 (or 7056600 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 37.

The square root of 564527440 is about 23759.7861943242. The cubic root of 564527440 is about 826.4723948040.

The spelling of 564527440 in words is "five hundred sixty-four million, five hundred twenty-seven thousand, four hundred forty".