12855432 has 32 divisors (see below), whose sum is σ = 32313600. Its totient is φ = 4261824.

The previous prime is 12855407. The next prime is 12855449. The reversal of 12855432 is 23455821.

It is a self number, because there is not a number n which added to its sum of digits gives 12855432.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3369 + ... + 6087.

It is an arithmetic number, because the mean of its divisors is an integer number (1009800).

Almost surely, 2^12855432 is an apocalyptic number.

12855432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12855432 is an abundant number, since it is smaller than the sum of its proper divisors (19458168).

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

12855432 is a wasteful number, since it uses less digits than its factorization.

12855432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2925 (or 2921 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 12855432 is about 3585.4472524359. The cubic root of 12855432 is about 234.2586080932.

The spelling of 12855432 in words is "twelve million, eight hundred fifty-five thousand, four hundred thirty-two".