12305928 has 16 divisors (see below), whose sum is σ = 30764880. Its totient is φ = 4101968.

The previous prime is 12305921. The next prime is 12305981. The reversal of 12305928 is 82950321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12305895 and 12305904.

It is not an unprimeable number, because it can be changed into a prime (12305921) by changing a digit.

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, 256350 + ... + 256397.

It is an arithmetic number, because the mean of its divisors is an integer number (1922805).

Almost surely, 2^12305928 is an apocalyptic number.

It is an amenable number.

12305928 is an abundant number, since it is smaller than the sum of its proper divisors (18458952).

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

12305928 is a wasteful number, since it uses less digits than its factorization.

12305928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512756 (or 512752 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 12305928 is about 3507.9806156819. The cubic root of 12305928 is about 230.8721017599.

The spelling of 12305928 in words is "twelve million, three hundred five thousand, nine hundred twenty-eight".