499998408 has 128 divisors (see below), whose sum is σ = 1571512320. Its totient is φ = 129035520.

The previous prime is 499998397. The next prime is 499998413. The reversal of 499998408 is 804899994.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100213 + ... + 105083.

It is an arithmetic number, because the mean of its divisors is an integer number (12277440).

Almost surely, 2^499998408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 499998408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (785756160).

499998408 is an abundant number, since it is smaller than the sum of its proper divisors (1071513912).

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

499998408 is a wasteful number, since it uses less digits than its factorization.

499998408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4947 (or 4943 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 60.

The square root of 499998408 is about 22360.6441767674. The cubic root of 499998408 is about 793.6996836024.

The spelling of 499998408 in words is "four hundred ninety-nine million, nine hundred ninety-eight thousand, four hundred eight".