568497540 has 48 divisors (see below), whose sum is σ = 1714241088. Its totient is φ = 139937664.

The previous prime is 568497487. The next prime is 568497541. The reversal of 568497540 is 45794865.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 568497540.

It is not an unprimeable number, because it can be changed into a prime (568497541) 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, 363642 + ... + 365201.

It is an arithmetic number, because the mean of its divisors is an integer number (35713356).

Almost surely, 2^568497540 is an apocalyptic number.

It is an amenable number.

568497540 is an abundant number, since it is smaller than the sum of its proper divisors (1145743548).

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

568497540 is a wasteful number, since it uses less digits than its factorization.

568497540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728868 (or 728866 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The square root of 568497540 is about 23843.1864481239. The cubic root of 568497540 is about 828.4052894626.

The spelling of 568497540 in words is "five hundred sixty-eight million, four hundred ninety-seven thousand, five hundred forty".