28858112 has 72 divisors (see below), whose sum is σ = 64386000. Its totient is φ = 12828672.

The previous prime is 28858111. The next prime is 28858133. The reversal of 28858112 is 21185882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28858111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82514 + ... + 82862.

It is an arithmetic number, because the mean of its divisors is an integer number (894250).

Almost surely, 2^28858112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28858112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32193000).

28858112 is an abundant number, since it is smaller than the sum of its proper divisors (35527888).

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

28858112 is a wasteful number, since it uses less digits than its factorization.

28858112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 387 counting only the distinct ones).

The product of its digits is 10240, while the sum is 35.

The square root of 28858112 is about 5371.9746834846. The cubic root of 28858112 is about 306.7298000663.

The spelling of 28858112 in words is "twenty-eight million, eight hundred fifty-eight thousand, one hundred twelve".