12231904 has 24 divisors (see below), whose sum is σ = 24734808. Its totient is φ = 5950080.

The previous prime is 12231889. The next prime is 12231917. The reversal of 12231904 is 40913221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3982 + ... + 6349.

It is an arithmetic number, because the mean of its divisors is an integer number (1030617).

Almost surely, 2^12231904 is an apocalyptic number.

It is an amenable number.

12231904 is an abundant number, since it is smaller than the sum of its proper divisors (12502904).

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

12231904 is a wasteful number, since it uses less digits than its factorization.

12231904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10378 (or 10370 counting only the distinct ones).

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

The square root of 12231904 is about 3497.4139017280. The cubic root of 12231904 is about 230.4082478400.

The spelling of 12231904 in words is "twelve million, two hundred thirty-one thousand, nine hundred four".