999818304 has 112 divisors (see below), whose sum is σ = 2830860480. Its totient is φ = 310487040.

The previous prime is 999818279. The next prime is 999818311. The reversal of 999818304 is 403818999.

It is a happy 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, 220282 + ... + 224774.

It is an arithmetic number, because the mean of its divisors is an integer number (25275540).

Almost surely, 2^999818304 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 999818304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1415430240).

999818304 is an abundant number, since it is smaller than the sum of its proper divisors (1831042176).

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

999818304 is a wasteful number, since it uses less digits than its factorization.

999818304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4588 (or 4578 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 51.

The square root of 999818304 is about 31619.9036051662. The cubic root of 999818304 is about 999.9394309981.

The spelling of 999818304 in words is "nine hundred ninety-nine million, eight hundred eighteen thousand, three hundred four".