304400000 has 96 divisors (see below), whose sum is σ = 758974860. Its totient is φ = 121600000.

The previous prime is 304399987. The next prime is 304400027. The reversal of 304400000 is 4403.

It can be written as a sum of positive squares in 6 ways, for example, as 132894784 + 171505216 = 11528^2 + 13096^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 399620 + ... + 400380.

Almost surely, 2^304400000 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 304400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379487430).

304400000 is an abundant number, since it is smaller than the sum of its proper divisors (454574860).

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

304400000 is an frugal number, since it uses more digits than its factorization.

304400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800 (or 768 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 304400000 is about 17447.0627900515. The cubic root of 304400000 is about 672.6898622311.

Adding to 304400000 its reverse (4403), we get a palindrome (304404403).

The spelling of 304400000 in words is "three hundred four million, four hundred thousand".