499943808 has 384 divisors, whose sum is σ = 1871251200. Its totient is φ = 124416000.

The previous prime is 499943783. The next prime is 499943813. The reversal of 499943808 is 808349994.

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-2 number, since 2×499943808² = 499887622315081728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1991683 + ... + 1991933.

It is an arithmetic number, because the mean of its divisors is an integer number (4873050).

Almost surely, 2^499943808 is an apocalyptic number.

499943808 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 499943808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (935625600).

499943808 is an abundant number, since it is smaller than the sum of its proper divisors (1371307392).

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

499943808 is a wasteful number, since it uses less digits than its factorization.

499943808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 499943808 is about 22359.4232483756. The cubic root of 499943808 is about 793.6707917902.

The spelling of 499943808 in words is "four hundred ninety-nine million, nine hundred forty-three thousand, eight hundred eight".