28276266 has 8 divisors (see below), whose sum is σ = 56552544. Its totient is φ = 9425420.

The previous prime is 28276217. The next prime is 28276267. The reversal of 28276266 is 66267282.

It is a sphenic number, since it is the product of 3 distinct primes.

28276266 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28276267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2356350 + ... + 2356361.

It is an arithmetic number, because the mean of its divisors is an integer number (7069068).

Almost surely, 2^28276266 is an apocalyptic number.

28276266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28276266 is a wasteful number, since it uses less digits than its factorization.

28276266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4712716.

The product of its digits is 96768, while the sum is 39.

The square root of 28276266 is about 5317.5432297255. The cubic root of 28276266 is about 304.6543284387.

The spelling of 28276266 in words is "twenty-eight million, two hundred seventy-six thousand, two hundred sixty-six".