568642 has 16 divisors (see below), whose sum is σ = 892800. Its totient is φ = 271440.

The previous prime is 568627. The next prime is 568643. The reversal of 568642 is 246865.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (568643) by changing a digit.

568642 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7159 + ... + 7237.

It is an arithmetic number, because the mean of its divisors is an integer number (55800).

2⁵⁶⁸⁶⁴² is an apocalyptic number.

568642 is a deficient number, since it is larger than the sum of its proper divisors (324158).

568642 is a wasteful number, since it uses less digits than its factorization.

568642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201.

The product of its digits is 11520, while the sum is 31.

The square root of 568642 is about 754.0835497476. The cubic root of 568642 is about 82.8475451767.

The spelling of 568642 in words is "five hundred sixty-eight thousand, six hundred forty-two".