12855422 has 16 divisors (see below), whose sum is σ = 19602000. Its totient is φ = 6322560.

The previous prime is 12855407. The next prime is 12855449. The reversal of 12855422 is 22455821.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 53222 + ... + 53462.

It is an arithmetic number, because the mean of its divisors is an integer number (1225125).

Almost surely, 2^12855422 is an apocalyptic number.

12855422 is a deficient number, since it is larger than the sum of its proper divisors (6746578).

12855422 is a wasteful number, since it uses less digits than its factorization.

12855422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571.

The product of its digits is 6400, while the sum is 29.

The square root of 12855422 is about 3585.4458579094. The cubic root of 12855422 is about 234.2585473513.

The spelling of 12855422 in words is "twelve million, eight hundred fifty-five thousand, four hundred twenty-two".