568323440 has 80 divisors (see below), whose sum is σ = 1438970400. Its totient is φ = 207922176.

The previous prime is 568323439. The next prime is 568323449. The reversal of 568323440 is 44323865.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 568323440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (568323449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37634 + ... + 50526.

It is an arithmetic number, because the mean of its divisors is an integer number (17987130).

Almost surely, 2^568323440 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 568323440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (719485200).

568323440 is an abundant number, since it is smaller than the sum of its proper divisors (870646960).

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

568323440 is a wasteful number, since it uses less digits than its factorization.

568323440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12954 (or 12948 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 568323440 is about 23839.5352303689. The cubic root of 568323440 is about 828.3207156072.

The spelling of 568323440 in words is "five hundred sixty-eight million, three hundred twenty-three thousand, four hundred forty".