568900642 has 4 divisors (see below), whose sum is σ = 853350966. Its totient is φ = 284450320.

The previous prime is 568900589. The next prime is 568900649. The reversal of 568900642 is 246009865.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 386083201 + 182817441 = 19649^2 + 13521^2 .

It is a junction number, because it is equal to n+sod(n) for n = 568900595 and 568900604.

It is not an unprimeable number, because it can be changed into a prime (568900649) by changing a digit.

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 as a sum of consecutive naturals, namely, 142225159 + ... + 142225162.

Almost surely, 2^568900642 is an apocalyptic number.

568900642 is a deficient number, since it is larger than the sum of its proper divisors (284450324).

568900642 is a wasteful number, since it uses less digits than its factorization.

568900642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284450323.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 568900642 is about 23851.6381408070. The cubic root of 568900642 is about 828.6010410769.

The spelling of 568900642 in words is "five hundred sixty-eight million, nine hundred thousand, six hundred forty-two".