28227366 has 36 divisors (see below), whose sum is σ = 63688716. Its totient is φ = 9370080.

The previous prime is 28227359. The next prime is 28227373. The reversal of 28227366 is 66372282.

It is an interprime number because it is at equal distance from previous prime (28227359) and next prime (28227373).

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 28227366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 117006 + ... + 117246.

It is an arithmetic number, because the mean of its divisors is an integer number (1769131).

Almost surely, 2^28227366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28227366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31844358).

28227366 is an abundant number, since it is smaller than the sum of its proper divisors (35461350).

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

28227366 is an frugal number, since it uses more digits than its factorization.

28227366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499 (or 246 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 28227366 is about 5312.9432520967. The cubic root of 28227366 is about 304.4786075388.

The spelling of 28227366 in words is "twenty-eight million, two hundred twenty-seven thousand, three hundred sixty-six".