12305688 has 32 divisors (see below), whose sum is σ = 32574960. Its totient is φ = 3860480.

The previous prime is 12305687. The next prime is 12305693. The reversal of 12305688 is 88650321.

It is a happy number.

12305688 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12305687) 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, 14673 + ... + 15488.

Almost surely, 2^12305688 is an apocalyptic number.

It is an amenable number.

12305688 is an abundant number, since it is smaller than the sum of its proper divisors (20269272).

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

12305688 is a wasteful number, since it uses less digits than its factorization.

12305688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30187 (or 30183 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 12305688 is about 3507.9464078004. The cubic root of 12305688 is about 230.8706008663.

The spelling of 12305688 in words is "twelve million, three hundred five thousand, six hundred eighty-eight".