12291304 has 32 divisors (see below), whose sum is σ = 23677920. Its totient is φ = 5980096.

The previous prime is 12291287. The next prime is 12291313. The reversal of 12291304 is 40319221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70962 + ... + 71134.

It is an arithmetic number, because the mean of its divisors is an integer number (739935).

Almost surely, 2^12291304 is an apocalyptic number.

It is an amenable number.

12291304 is a deficient number, since it is larger than the sum of its proper divisors (11386616).

12291304 is a wasteful number, since it uses less digits than its factorization.

12291304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 12291304 is about 3505.8956059757. The cubic root of 12291304 is about 230.7806116552.

The spelling of 12291304 in words is "twelve million, two hundred ninety-one thousand, three hundred four".