28442168 has 32 divisors (see below), whose sum is σ = 55935360. Its totient is φ = 13532640.

The previous prime is 28442153. The next prime is 28442179. The reversal of 28442168 is 86124482.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60671 + ... + 61137.

It is an arithmetic number, because the mean of its divisors is an integer number (1747980).

Almost surely, 2^28442168 is an apocalyptic number.

It is an amenable number.

28442168 is a deficient number, since it is larger than the sum of its proper divisors (27493192).

28442168 is a wasteful number, since it uses less digits than its factorization.

28442168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827 (or 823 counting only the distinct ones).

The product of its digits is 24576, while the sum is 35.

The square root of 28442168 is about 5333.1199123965. The cubic root of 28442168 is about 305.2489877604.

The spelling of 28442168 in words is "twenty-eight million, four hundred forty-two thousand, one hundred sixty-eight".