568898640 has 100 divisors (see below), whose sum is σ = 1975891764. Its totient is φ = 151704576.

The previous prime is 568898633. The next prime is 568898699. The reversal of 568898640 is 46898865.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 61027344 + 507871296 = 7812^2 + 22536^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 37417 + ... + 50376.

Almost surely, 2^568898640 is an apocalyptic number.

It is an amenable number.

568898640 is an abundant number, since it is smaller than the sum of its proper divisors (1406993124).

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

568898640 is a wasteful number, since it uses less digits than its factorization.

568898640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87818 (or 87803 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The square root of 568898640 is about 23851.5961730028. The cubic root of 568898640 is about 828.6000691080.

The spelling of 568898640 in words is "five hundred sixty-eight million, eight hundred ninety-eight thousand, six hundred forty".