499998864 has 20 divisors (see below), whose sum is σ = 1291663856. Its totient is φ = 166666272.

The previous prime is 499998859. The next prime is 499998911. The reversal of 499998864 is 468899994.

It is a junction number, because it is equal to n+sod(n) for n = 499998795 and 499998804.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 5208274 + ... + 5208369.

Almost surely, 2^499998864 is an apocalyptic number.

It is an amenable number.

499998864 is an abundant number, since it is smaller than the sum of its proper divisors (791664992).

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

499998864 is a wasteful number, since it uses less digits than its factorization.

499998864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10416654 (or 10416648 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 66.

The square root of 499998864 is about 22360.6543732512. The cubic root of 499998864 is about 793.6999248878.

The spelling of 499998864 in words is "four hundred ninety-nine million, nine hundred ninety-eight thousand, eight hundred sixty-four".