12876228 has 36 divisors (see below), whose sum is σ = 33965568. Its totient is φ = 4105200.

The previous prime is 12876211. The next prime is 12876229. The reversal of 12876228 is 82267821.

It is a happy number.

12876228 is a `hidden beast` number, since 1 + 28 + 7 + 622 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12876192 and 12876201.

It is not an unprimeable number, because it can be changed into a prime (12876229) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 6948 + ... + 8603.

It is an arithmetic number, because the mean of its divisors is an integer number (943488).

Almost surely, 2^12876228 is an apocalyptic number.

12876228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12876228 is an abundant number, since it is smaller than the sum of its proper divisors (21089340).

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

12876228 is a wasteful number, since it uses less digits than its factorization.

12876228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15584 (or 15579 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 12876228 is about 3588.3461371501. The cubic root of 12876228 is about 234.3848586786.

The spelling of 12876228 in words is "twelve million, eight hundred seventy-six thousand, two hundred twenty-eight".