28843230 has 48 divisors (see below), whose sum is σ = 74971440. Its totient is φ = 7098624.

The previous prime is 28843229. The next prime is 28843231. The reversal of 28843230 is 3234882.

It is an interprime number because it is at equal distance from previous prime (28843229) and next prime (28843231).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28843231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2226 + ... + 7914.

It is an arithmetic number, because the mean of its divisors is an integer number (1561905).

Almost surely, 2^28843230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28843230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37485720).

28843230 is an abundant number, since it is smaller than the sum of its proper divisors (46128210).

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

28843230 is a wasteful number, since it uses less digits than its factorization.

28843230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5725 (or 5712 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 28843230 is about 5370.5893531343. The cubic root of 28843230 is about 306.6770646023.

The spelling of 28843230 in words is "twenty-eight million, eight hundred forty-three thousand, two hundred thirty".