28110888 has 160 divisors (see below), whose sum is σ = 87816960. Its totient is φ = 8346240.

The previous prime is 28110881. The next prime is 28110919. The reversal of 28110888 is 88801182.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (28110881) 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 39 ways as a sum of consecutive naturals, for example, 395893 + ... + 395963.

It is an arithmetic number, because the mean of its divisors is an integer number (548856).

Almost surely, 2^28110888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28110888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43908480).

28110888 is an abundant number, since it is smaller than the sum of its proper divisors (59706072).

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

28110888 is a wasteful number, since it uses less digits than its factorization.

28110888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 36.

The square root of 28110888 is about 5301.9701998408. The cubic root of 28110888 is about 304.0592278413.

The spelling of 28110888 in words is "twenty-eight million, one hundred ten thousand, eight hundred eighty-eight".