304335240 has 128 divisors (see below), whose sum is σ = 1000581120. Its totient is φ = 73440000.

The previous prime is 304335223. The next prime is 304335259. The reversal of 304335240 is 42533403.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 304335240.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 404865 + ... + 405615.

It is an arithmetic number, because the mean of its divisors is an integer number (7817040).

Almost surely, 2^304335240 is an apocalyptic number.

304335240 is a gapful number since it is divisible by the number (30) 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 304335240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (500290560).

304335240 is an abundant number, since it is smaller than the sum of its proper divisors (696245880).

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

304335240 is a wasteful number, since it uses less digits than its factorization.

304335240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083 (or 1079 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 304335240 is about 17445.2067915517. The cubic root of 304335240 is about 672.6421547353.

Adding to 304335240 its reverse (42533403), we get a palindrome (346868643).

It can be divided in two parts, 3043 and 35240, that added together give a palindrome (38283).

The spelling of 304335240 in words is "three hundred four million, three hundred thirty-five thousand, two hundred forty".