12026286 has 48 divisors (see below), whose sum is σ = 28003920. Its totient is φ = 3825360.

The previous prime is 12026269. The next prime is 12026291. The reversal of 12026286 is 68262021.

It is a super-3 number, since 3×12026286³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

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 23 ways as a sum of consecutive naturals, for example, 28356 + ... + 28776.

It is an arithmetic number, because the mean of its divisors is an integer number (583415).

Almost surely, 2^12026286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12026286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14001960).

12026286 is an abundant number, since it is smaller than the sum of its proper divisors (15977634).

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

12026286 is a wasteful number, since it uses less digits than its factorization.

12026286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 12026286 is about 3467.8935969836. The cubic root of 12026286 is about 229.1098930362.

The spelling of 12026286 in words is "twelve million, twenty-six thousand, two hundred eighty-six".