12888828 has 48 divisors (see below), whose sum is σ = 33707520. Its totient is φ = 4258800.

The previous prime is 12888803. The next prime is 12888851. The reversal of 12888828 is 82888821.

It is a happy number.

It is a super-2 number, since 2×12888828² = 332243774427168, which contains 22 as substring.

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, 13693 + ... + 14603.

It is an arithmetic number, because the mean of its divisors is an integer number (702240).

Almost surely, 2^12888828 is an apocalyptic number.

12888828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12888828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16853760).

12888828 is an abundant number, since it is smaller than the sum of its proper divisors (20818692).

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

12888828 is a wasteful number, since it uses less digits than its factorization.

12888828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055 (or 1047 counting only the distinct ones).

The product of its digits is 131072, while the sum is 45.

The square root of 12888828 is about 3590.1013913259. The cubic root of 12888828 is about 234.4612859896.

The spelling of 12888828 in words is "twelve million, eight hundred eighty-eight thousand, eight hundred twenty-eight".