12826188 has 60 divisors (see below), whose sum is σ = 34638912. Its totient is φ = 4134240.

The previous prime is 12826171. The next prime is 12826193. The reversal of 12826188 is 88162821.

12826188 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12826188² = 329022197222688, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9406 + ... + 10682.

Almost surely, 2^12826188 is an apocalyptic number.

12826188 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 12826188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17319456).

12826188 is an abundant number, since it is smaller than the sum of its proper divisors (21812724).

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

12826188 is a wasteful number, since it uses less digits than its factorization.

12826188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324 (or 1313 counting only the distinct ones).

The product of its digits is 12288, while the sum is 36.

The square root of 12826188 is about 3581.3667782007. The cubic root of 12826188 is about 234.0808399191.

The spelling of 12826188 in words is "twelve million, eight hundred twenty-six thousand, one hundred eighty-eight".