28456112 has 20 divisors (see below), whose sum is σ = 55625160. Its totient is φ = 14101248.

The previous prime is 28456111. The next prime is 28456117. The reversal of 28456112 is 21165482.

It is not an unprimeable number, because it can be changed into a prime (28456111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6062 + ... + 9677.

It is an arithmetic number, because the mean of its divisors is an integer number (2781258).

Almost surely, 2^28456112 is an apocalyptic number.

It is an amenable number.

28456112 is a deficient number, since it is larger than the sum of its proper divisors (27169048).

28456112 is a wasteful number, since it uses less digits than its factorization.

28456112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15860 (or 15854 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 28456112 is about 5334.4270545205. The cubic root of 28456112 is about 305.2988631953.

The spelling of 28456112 in words is "twenty-eight million, four hundred fifty-six thousand, one hundred twelve".