565928640 has 224 divisors, whose sum is σ = 2114458560. Its totient is φ = 142000128.

The previous prime is 565928599. The next prime is 565928641. The reversal of 565928640 is 46829565.

565928640 is a `hidden beast` number, since 56 + 592 + 8 + 6 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (565928641) 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 31 ways as a sum of consecutive naturals, for example, 144954 + ... + 148806.

Almost surely, 2^565928640 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 565928640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1057229280).

565928640 is an abundant number, since it is smaller than the sum of its proper divisors (1548529920).

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

565928640 is a wasteful number, since it uses less digits than its factorization.

565928640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3896 (or 3880 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 565928640 is about 23789.2547172037. The cubic root of 565928640 is about 827.1556189377.

The spelling of 565928640 in words is "five hundred sixty-five million, nine hundred twenty-eight thousand, six hundred forty".