28830582 has 48 divisors (see below), whose sum is σ = 70508880. Its totient is φ = 8433600.

The previous prime is 28830563. The next prime is 28830583. The reversal of 28830582 is 28503882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28830583) 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, 3232 + ... + 8252.

It is an arithmetic number, because the mean of its divisors is an integer number (1468935).

Almost surely, 2^28830582 is an apocalyptic number.

28830582 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 28830582, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35254440).

28830582 is an abundant number, since it is smaller than the sum of its proper divisors (41678298).

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

28830582 is a wasteful number, since it uses less digits than its factorization.

28830582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5069 (or 5066 counting only the distinct ones).

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

The square root of 28830582 is about 5369.4116996185. The cubic root of 28830582 is about 306.6322312206.

The spelling of 28830582 in words is "twenty-eight million, eight hundred thirty thousand, five hundred eighty-two".