304020312 has 16 divisors (see below), whose sum is σ = 760050840. Its totient is φ = 101340096.

The previous prime is 304020287. The next prime is 304020313. The reversal of 304020312 is 213020403.

It is a junction number, because it is equal to n+sod(n) for n = 304020291 and 304020300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304020313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6333733 + ... + 6333780.

Almost surely, 2^304020312 is an apocalyptic number.

It is an amenable number.

304020312 is an abundant number, since it is smaller than the sum of its proper divisors (456030528).

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

304020312 is a wasteful number, since it uses less digits than its factorization.

304020312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12667522 (or 12667518 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 304020312 is about 17436.1782509815. The cubic root of 304020312 is about 672.4100565623.

Adding to 304020312 its reverse (213020403), we get a palindrome (517040715).

Subtracting from 304020312 its reverse (213020403), we obtain a palindrome (90999909).

The spelling of 304020312 in words is "three hundred four million, twenty thousand, three hundred twelve".