499559808 has 128 divisors (see below), whose sum is σ = 1456755840. Its totient is φ = 150425600.

The previous prime is 499559791. The next prime is 499559831. The reversal of 499559808 is 808955994.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 958588 + ... + 959108.

It is an arithmetic number, because the mean of its divisors is an integer number (11380905).

Almost surely, 2^499559808 is an apocalyptic number.

499559808 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499559808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (728377920).

499559808 is an abundant number, since it is smaller than the sum of its proper divisors (957196032).

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

499559808 is a wasteful number, since it uses less digits than its factorization.

499559808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 57.

The square root of 499559808 is about 22350.8346152890. The cubic root of 499559808 is about 793.4675371829.

The spelling of 499559808 in words is "four hundred ninety-nine million, five hundred fifty-nine thousand, eight hundred eight".