564316380 has 72 divisors (see below), whose sum is σ = 1722101472. Its totient is φ = 149575296.

The previous prime is 564316373. The next prime is 564316381. The reversal of 564316380 is 83613465.

564316380 is a `hidden beast` number, since 5 + 643 + 1 + 6 + 3 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564316381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20674 + ... + 39446.

It is an arithmetic number, because the mean of its divisors is an integer number (23918076).

Almost surely, 2^564316380 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 564316380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (861050736).

564316380 is an abundant number, since it is smaller than the sum of its proper divisors (1157785092).

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

564316380 is a wasteful number, since it uses less digits than its factorization.

564316380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18955 (or 18950 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 564316380 is about 23755.3442408229. The cubic root of 564316380 is about 826.3693841592.

The spelling of 564316380 in words is "five hundred sixty-four million, three hundred sixteen thousand, three hundred eighty".