28236366 has 12 divisors (see below), whose sum is σ = 61178832. Its totient is φ = 9412116.

The previous prime is 28236361. The next prime is 28236367. The reversal of 28236366 is 66363282.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28236366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28236361) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 784326 + ... + 784361.

It is an arithmetic number, because the mean of its divisors is an integer number (5098236).

Almost surely, 2^28236366 is an apocalyptic number.

28236366 is an abundant number, since it is smaller than the sum of its proper divisors (32942466).

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

28236366 is a wasteful number, since it uses less digits than its factorization.

28236366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568695 (or 1568692 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 28236366 is about 5313.7901727486. The cubic root of 28236366 is about 304.5109640386.

The spelling of 28236366 in words is "twenty-eight million, two hundred thirty-six thousand, three hundred sixty-six".