564441680 has 40 divisors (see below), whose sum is σ = 1431631584. Its totient is φ = 205251200.

The previous prime is 564441611. The next prime is 564441733. The reversal of 564441680 is 86144465.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 319826 + ... + 321585.

Almost surely, 2^564441680 is an apocalyptic number.

It is an amenable number.

564441680 is an abundant number, since it is smaller than the sum of its proper divisors (867189904).

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

564441680 is a wasteful number, since it uses less digits than its factorization.

564441680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641435 (or 641429 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 564441680 is about 23757.9813957331. The cubic root of 564441680 is about 826.4305415907.

It can be divided in two parts, 564 and 441680, that added together give a palindrome (442244).

The spelling of 564441680 in words is "five hundred sixty-four million, four hundred forty-one thousand, six hundred eighty".