28266 has 16 divisors (see below), whose sum is σ = 64704. Its totient is φ = 8064.

The previous prime is 28229. The next prime is 28277. The reversal of 28266 is 66282.

It is a d-powerful number, because it can be written as 2² + 8⁴ + 2¹⁴ + 6 + 6⁵ .

It is a Curzon number.

It is a nialpdrome in base 14.

It is an unprimeable number.

28266 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295 + ... + 378.

It is an arithmetic number, because the mean of its divisors is an integer number (4044).

2²⁸²⁶⁶ is an apocalyptic number.

28266 is an abundant number, since it is smaller than the sum of its proper divisors (36438).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32352).

28266 is a wasteful number, since it uses less digits than its factorization.

28266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685.

The product of its digits is 1152, while the sum is 24.

The square root of 28266 is about 168.1249535316. The cubic root of 28266 is about 30.4617454641.

The spelling of 28266 in words is "twenty-eight thousand, two hundred sixty-six".