12320304 has 40 divisors (see below), whose sum is σ = 31997952. Its totient is φ = 4084800.

The previous prime is 12320267. The next prime is 12320309. The reversal of 12320304 is 40302321.

It is not an unprimeable number, because it can be changed into a prime (12320309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10129 + ... + 11279.

Almost surely, 2^12320304 is an apocalyptic number.

It is an amenable number.

12320304 is an abundant number, since it is smaller than the sum of its proper divisors (19677648).

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

12320304 is a wasteful number, since it uses less digits than its factorization.

12320304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385 (or 1379 counting only the distinct ones).

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

The square root of 12320304 is about 3510.0290597088. The cubic root of 12320304 is about 230.9619697143.

Adding to 12320304 its reverse (40302321), we get a palindrome (52622625).

The spelling of 12320304 in words is "twelve million, three hundred twenty thousand, three hundred four".