568736640 has 448 divisors, whose sum is σ = 2167287840. Its totient is φ = 142331904.

The previous prime is 568736639. The next prime is 568736653. The reversal of 568736640 is 46637865.

It is a super-2 number, since 2×568736640² = 646922731356979200, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

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 55 ways as a sum of consecutive naturals, for example, 10730854 + ... + 10730906.

Almost surely, 2^568736640 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 568736640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1083643920).

568736640 is an abundant number, since it is smaller than the sum of its proper divisors (1598551200).

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

568736640 is an equidigital number, since it uses as much as digits as its factorization.

568736640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 568736640 is about 23848.1999320703. The cubic root of 568736640 is about 828.5214107171.

The spelling of 568736640 in words is "five hundred sixty-eight million, seven hundred thirty-six thousand, six hundred forty".