566443440 has 120 divisors (see below), whose sum is σ = 1914804528. Its totient is φ = 150059520.

The previous prime is 566443421. The next prime is 566443441. The reversal of 566443440 is 44344665.

566443440 is a `hidden beast` number, since 5 + 6 + 644 + 3 + 4 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a junction number, because it is equal to n+sod(n) for n = 566443395 and 566443404.

It is not an unprimeable number, because it can be changed into a prime (566443441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110535 + ... + 115545.

Almost surely, 2^566443440 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 566443440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (957402264).

566443440 is an abundant number, since it is smaller than the sum of its proper divisors (1348361088).

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

566443440 is a wasteful number, since it uses less digits than its factorization.

566443440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5187 (or 5178 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The square root of 566443440 is about 23800.0722687978. The cubic root of 566443440 is about 827.4063517635.

The spelling of 566443440 in words is "five hundred sixty-six million, four hundred forty-three thousand, four hundred forty".