12885838 has 32 divisors (see below), whose sum is σ = 23466240. Its totient is φ = 5184000.

The previous prime is 12885827. The next prime is 12885841. The reversal of 12885838 is 83858821.

It is a junction number, because it is equal to n+sod(n) for n = 12885794 and 12885803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51213 + ... + 51463.

It is an arithmetic number, because the mean of its divisors is an integer number (733320).

Almost surely, 2^12885838 is an apocalyptic number.

12885838 is a deficient number, since it is larger than the sum of its proper divisors (10580402).

12885838 is a wasteful number, since it uses less digits than its factorization.

12885838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472.

The product of its digits is 122880, while the sum is 43.

The square root of 12885838 is about 3589.6849443928. The cubic root of 12885838 is about 234.4431541765.

The spelling of 12885838 in words is "twelve million, eight hundred eighty-five thousand, eight hundred thirty-eight".