28588230 has 96 divisors (see below), whose sum is σ = 82487808. Its totient is φ = 6811200.

The previous prime is 28588223. The next prime is 28588243. The reversal of 28588230 is 3288582.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

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, 66115 + ... + 66545.

It is an arithmetic number, because the mean of its divisors is an integer number (859248).

Almost surely, 2^28588230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28588230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41243904).

28588230 is an abundant number, since it is smaller than the sum of its proper divisors (53899578).

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

28588230 is a wasteful number, since it uses less digits than its factorization.

28588230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 28588230 is about 5346.7962370002. The cubic root of 28588230 is about 305.7706213846.

The spelling of 28588230 in words is "twenty-eight million, five hundred eighty-eight thousand, two hundred thirty".