12842878 has 16 divisors (see below), whose sum is σ = 20334240. Its totient is φ = 6071296.

The previous prime is 12842861. The next prime is 12842887. The reversal of 12842878 is 87824821.

It is a self number, because there is not a number n which added to its sum of digits gives 12842878.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2526 + ... + 5662.

It is an arithmetic number, because the mean of its divisors is an integer number (1270890).

Almost surely, 2^12842878 is an apocalyptic number.

12842878 is a deficient number, since it is larger than the sum of its proper divisors (7491362).

12842878 is a wasteful number, since it uses less digits than its factorization.

12842878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3251.

The product of its digits is 57344, while the sum is 40.

The square root of 12842878 is about 3583.6961366723. The cubic root of 12842878 is about 234.1823280067.

The spelling of 12842878 in words is "twelve million, eight hundred forty-two thousand, eight hundred seventy-eight".