28358112 has 48 divisors (see below), whose sum is σ = 75358080. Its totient is φ = 9336192.

The previous prime is 28358093. The next prime is 28358117. The reversal of 28358112 is 21185382.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 28358112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28358117) 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, 6189 + ... + 9747.

It is an arithmetic number, because the mean of its divisors is an integer number (1569960).

Almost surely, 2^28358112 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 28358112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37679040).

28358112 is an abundant number, since it is smaller than the sum of its proper divisors (46999968).

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

28358112 is a wasteful number, since it uses less digits than its factorization.

28358112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3655 (or 3647 counting only the distinct ones).

The product of its digits is 3840, while the sum is 30.

The square root of 28358112 is about 5325.2335160066. The cubic root of 28358112 is about 304.9479871890.

The spelling of 28358112 in words is "twenty-eight million, three hundred fifty-eight thousand, one hundred twelve".