563944320 has 192 divisors, whose sum is σ = 2050261200. Its totient is φ = 142442496.

The previous prime is 563944319. The next prime is 563944357. The reversal of 563944320 is 23449365.

563944320 is a `hidden beast` number, since 563 + 94 + 4 + 3 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106864 + ... + 112016.

Almost surely, 2^563944320 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 563944320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1025130600).

563944320 is an abundant number, since it is smaller than the sum of its proper divisors (1486316880).

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

563944320 is a wasteful number, since it uses less digits than its factorization.

563944320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5197 (or 5182 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 563944320 is about 23747.5118696675. The cubic root of 563944320 is about 826.1877327552.

The spelling of 563944320 in words is "five hundred sixty-three million, nine hundred forty-four thousand, three hundred twenty".