304431412 has 24 divisors (see below), whose sum is σ = 548178120. Its totient is φ = 147824640.

The previous prime is 304431409. The next prime is 304431431. The reversal of 304431412 is 214134403.

It can be written as a sum of positive squares in 4 ways, for example, as 182682256 + 121749156 = 13516^2 + 11034^2 .

It is a super-2 number, since 2×304431412² = 185356969224627488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93264 + ... + 96472.

It is an arithmetic number, because the mean of its divisors is an integer number (22840755).

Almost surely, 2^304431412 is an apocalyptic number.

It is an amenable number.

304431412 is a deficient number, since it is larger than the sum of its proper divisors (243746708).

304431412 is a wasteful number, since it uses less digits than its factorization.

304431412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3891 (or 3889 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 304431412 is about 17447.9629756599. The cubic root of 304431412 is about 672.7130004343.

Adding to 304431412 its reverse (214134403), we get a palindrome (518565815).

The spelling of 304431412 in words is "three hundred four million, four hundred thirty-one thousand, four hundred twelve".