499999568 has 20 divisors (see below), whose sum is σ = 977640180. Its totient is φ = 247705344.

The previous prime is 499999547. The next prime is 499999613. The reversal of 499999568 is 865999994.

It can be written as a sum of positive squares in 2 ways, for example, as 275958544 + 224041024 = 16612^2 + 14968^2 .

It is a junction number, because it is equal to n+sod(n) for n = 499999498 and 499999507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141605 + ... + 145092.

It is an arithmetic number, because the mean of its divisors is an integer number (48882009).

Almost surely, 2^499999568 is an apocalyptic number.

It is an amenable number.

499999568 is a deficient number, since it is larger than the sum of its proper divisors (477640612).

499999568 is a wasteful number, since it uses less digits than its factorization.

499999568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286814 (or 286808 counting only the distinct ones).

The product of its digits is 56687040, while the sum is 68.

The square root of 499999568 is about 22360.6701151821. The cubic root of 499999568 is about 793.7002973983.

The spelling of 499999568 in words is "four hundred ninety-nine million, nine hundred ninety-nine thousand, five hundred sixty-eight".