499990856 has 16 divisors (see below), whose sum is σ = 969810300. Its totient is φ = 241374784.

The previous prime is 499990849. The next prime is 499990861. The reversal of 499990856 is 658099994.

It can be written as a sum of positive squares in 2 ways, for example, as 452242756 + 47748100 = 21266^2 + 6910^2 .

It is a super-2 number, since 2×499990856² = 499981712167225472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 499990795 and 499990804.

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, 1077335 + ... + 1077798.

Almost surely, 2^499990856 is an apocalyptic number.

It is an amenable number.

499990856 is a deficient number, since it is larger than the sum of its proper divisors (469819444).

499990856 is a wasteful number, since it uses less digits than its factorization.

499990856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2155168 (or 2155164 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 59.

The square root of 499990856 is about 22360.4753080072. The cubic root of 499990856 is about 793.6956875562.

The spelling of 499990856 in words is "four hundred ninety-nine million, nine hundred ninety thousand, eight hundred fifty-six".