12428912 has 20 divisors (see below), whose sum is σ = 24388320. Its totient is φ = 6135168.

The previous prime is 12428909. The next prime is 12428951. The reversal of 12428912 is 21982421.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 3653 + ... + 6180.

It is an arithmetic number, because the mean of its divisors is an integer number (1219416).

Almost surely, 2^12428912 is an apocalyptic number.

It is an amenable number.

12428912 is a deficient number, since it is larger than the sum of its proper divisors (11959408).

12428912 is an equidigital number, since it uses as much as digits as its factorization.

12428912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9920 (or 9914 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 12428912 is about 3525.4662103047. The cubic root of 12428912 is about 231.6386566783.

The spelling of 12428912 in words is "twelve million, four hundred twenty-eight thousand, nine hundred twelve".