12385128 has 32 divisors (see below), whose sum is σ = 35386560. Its totient is φ = 3538560.

The previous prime is 12385081. The next prime is 12385159. The reversal of 12385128 is 82158321.

It is a junction number, because it is equal to n+sod(n) for n = 12385095 and 12385104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36693 + ... + 37028.

It is an arithmetic number, because the mean of its divisors is an integer number (1105830).

Almost surely, 2^12385128 is an apocalyptic number.

It is an amenable number.

12385128 is an abundant number, since it is smaller than the sum of its proper divisors (23001432).

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

12385128 is a wasteful number, since it uses less digits than its factorization.

12385128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73737 (or 73733 counting only the distinct ones).

The product of its digits is 3840, while the sum is 30.

The square root of 12385128 is about 3519.2510566881. The cubic root of 12385128 is about 231.3663346482.

The spelling of 12385128 in words is "twelve million, three hundred eighty-five thousand, one hundred twenty-eight".