304312012 has 12 divisors (see below), whose sum is σ = 533186640. Its totient is φ = 151972976.

The previous prime is 304312009. The next prime is 304312033. The reversal of 304312012 is 210213403.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41983 + ... + 48694.

It is an arithmetic number, because the mean of its divisors is an integer number (44432220).

Almost surely, 2^304312012 is an apocalyptic number.

It is an amenable number.

304312012 is a deficient number, since it is larger than the sum of its proper divisors (228874628).

304312012 is a wasteful number, since it uses less digits than its factorization.

304312012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91520 (or 91518 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 304312012 is about 17444.5410372414. The cubic root of 304312012 is about 672.6250414477.

Adding to 304312012 its reverse (210213403), we get a palindrome (514525415).

The spelling of 304312012 in words is "three hundred four million, three hundred twelve thousand, twelve".