568407840 has 576 divisors, whose sum is σ = 2461415040. Its totient is φ = 109025280.

The previous prime is 568407839. The next prime is 568407871. The reversal of 568407840 is 48704865.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 568407792 and 568407801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 43723674 + ... + 43723686.

It is an arithmetic number, because the mean of its divisors is an integer number (4273290).

Almost surely, 2^568407840 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 568407840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1230707520).

568407840 is an abundant number, since it is smaller than the sum of its proper divisors (1893007200).

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

568407840 is a wasteful number, since it uses less digits than its factorization.

568407840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 41 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 568407840 is about 23841.3053333915. The cubic root of 568407840 is about 828.3617173813.

The spelling of 568407840 in words is "five hundred sixty-eight million, four hundred seven thousand, eight hundred forty".