304242312 has 64 divisors (see below), whose sum is σ = 831643200. Its totient is φ = 91984640.

The previous prime is 304242311. The next prime is 304242331. The reversal of 304242312 is 213242403.

It is a super-2 number, since 2×304242312² = 185126768822210688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (304242311) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 146014 + ... + 148082.

It is an arithmetic number, because the mean of its divisors is an integer number (12994425).

Almost surely, 2^304242312 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 304242312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (415821600).

304242312 is an abundant number, since it is smaller than the sum of its proper divisors (527400888).

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

304242312 is a wasteful number, since it uses less digits than its factorization.

304242312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2646 (or 2642 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 304242312 is about 17442.5431631973. The cubic root of 304242312 is about 672.5736845691.

Adding to 304242312 its reverse (213242403), we get a palindrome (517484715).

Subtracting from 304242312 its reverse (213242403), we obtain a palindrome (90999909).

It can be divided in two parts, 3042 and 42312, that added together give a palindrome (45354).

The spelling of 304242312 in words is "three hundred four million, two hundred forty-two thousand, three hundred twelve".