304040000 has 140 divisors (see below), whose sum is σ = 823648848. Its totient is φ = 110400000.

The previous prime is 304039993. The next prime is 304040003. The reversal of 304040000 is 40403.

304040000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (11).

It is not an unprimeable number, because it can be changed into a prime (304040003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 439655 + ... + 440345.

Almost surely, 2^304040000 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 304040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411824424).

304040000 is an abundant number, since it is smaller than the sum of its proper divisors (519608848).

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

304040000 is an equidigital number, since it uses as much as digits as its factorization.

304040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734 (or 709 counting only the distinct ones).

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

The square root of 304040000 is about 17436.7428151017. The cubic root of 304040000 is about 672.4245710788.

Adding to 304040000 its reverse (40403), we get a palindrome (304080403).

The spelling of 304040000 in words is "three hundred four million, forty thousand".