28027230 has 96 divisors (see below), whose sum is σ = 84575232. Its totient is φ = 5818560.

The previous prime is 28027229. The next prime is 28027247. The reversal of 28027230 is 3272082.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

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 28027230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24859 + ... + 25961.

It is an arithmetic number, because the mean of its divisors is an integer number (880992).

Almost surely, 2^28027230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28027230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42287616).

28027230 is an abundant number, since it is smaller than the sum of its proper divisors (56548002).

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

28027230 is a wasteful number, since it uses less digits than its factorization.

28027230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142 (or 1131 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 28027230 is about 5294.0749900242. The cubic root of 28027230 is about 303.7573013876.

The spelling of 28027230 in words is "twenty-eight million, twenty-seven thousand, two hundred thirty".