28393168 has 20 divisors (see below), whose sum is σ = 55094688. Its totient is φ = 14175200.

The previous prime is 28393139. The next prime is 28393177. The reversal of 28393168 is 86139382.

It is a self number, because there is not a number n which added to its sum of digits gives 28393168.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18843 + ... + 20293.

Almost surely, 2^28393168 is an apocalyptic number.

It is an amenable number.

28393168 is a deficient number, since it is larger than the sum of its proper divisors (26701520).

28393168 is a wasteful number, since it uses less digits than its factorization.

28393168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682 (or 2676 counting only the distinct ones).

The product of its digits is 62208, while the sum is 40.

The square root of 28393168 is about 5328.5239982569. The cubic root of 28393168 is about 305.0735932778.

It can be divided in two parts, 28393 and 168, that added together give a 4-th power (28561 = 13⁴).

The spelling of 28393168 in words is "twenty-eight million, three hundred ninety-three thousand, one hundred sixty-eight".