28126112 has 48 divisors (see below), whose sum is σ = 63645120. Its totient is φ = 11985408.

The previous prime is 28126103. The next prime is 28126117. The reversal of 28126112 is 21162182.

It is not an unprimeable number, because it can be changed into a prime (28126117) 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, 68564 + ... + 68972.

It is an arithmetic number, because the mean of its divisors is an integer number (1325940).

Almost surely, 2^28126112 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 28126112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31822560).

28126112 is an abundant number, since it is smaller than the sum of its proper divisors (35519008).

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

28126112 is a wasteful number, since it uses less digits than its factorization.

28126112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733 (or 725 counting only the distinct ones).

The product of its digits is 384, while the sum is 23.

The square root of 28126112 is about 5303.4056982283. The cubic root of 28126112 is about 304.1141076717.

Adding to 28126112 its reverse (21162182), we get a palindrome (49288294).

The spelling of 28126112 in words is "twenty-eight million, one hundred twenty-six thousand, one hundred twelve".