28112568 has 32 divisors (see below), whose sum is σ = 76671360. Its totient is φ = 8518880.

The previous prime is 28112551. The next prime is 28112569. The reversal of 28112568 is 86521182.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28112569) 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, 52980 + ... + 53507.

It is an arithmetic number, because the mean of its divisors is an integer number (2395980).

Almost surely, 2^28112568 is an apocalyptic number.

It is an amenable number.

28112568 is an abundant number, since it is smaller than the sum of its proper divisors (48558792).

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

28112568 is a wasteful number, since it uses less digits than its factorization.

28112568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106507 (or 106503 counting only the distinct ones).

The product of its digits is 7680, while the sum is 33.

The square root of 28112568 is about 5302.1286291451. The cubic root of 28112568 is about 304.0652849170.

It can be divided in two parts, 28112 and 568, that added together give a triangular number (28680 = T₂₃₉).

The spelling of 28112568 in words is "twenty-eight million, one hundred twelve thousand, five hundred sixty-eight".