28108842 has 16 divisors (see below), whose sum is σ = 57525600. Its totient is φ = 9151632.

The previous prime is 28108841. The next prime is 28108853. The reversal of 28108842 is 24880182.

It is not an unprimeable number, because it can be changed into a prime (28108841) 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, 54217 + ... + 54732.

It is an arithmetic number, because the mean of its divisors is an integer number (3595350).

Almost surely, 2^28108842 is an apocalyptic number.

28108842 is an abundant number, since it is smaller than the sum of its proper divisors (29416758).

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

28108842 is a wasteful number, since it uses less digits than its factorization.

28108842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108997.

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 28108842 is about 5301.7772491873. Note that the first 3 decimals coincide. The cubic root of 28108842 is about 304.0518508625.

The spelling of 28108842 in words is "twenty-eight million, one hundred eight thousand, eight hundred forty-two".