28008882 has 64 divisors (see below), whose sum is σ = 69102720. Its totient is φ = 8337600.

The previous prime is 28008853. The next prime is 28008887. The reversal of 28008882 is 28880082.

It is not an unprimeable number, because it can be changed into a prime (28008887) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 35848 + ... + 36620.

It is an arithmetic number, because the mean of its divisors is an integer number (1079730).

Almost surely, 2^28008882 is an apocalyptic number.

28008882 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 28008882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34551360).

28008882 is an abundant number, since it is smaller than the sum of its proper divisors (41093838).

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

28008882 is a wasteful number, since it uses less digits than its factorization.

28008882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856 (or 850 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 36.

The square root of 28008882 is about 5292.3418256949. The cubic root of 28008882 is about 303.6910021065.

The spelling of 28008882 in words is "twenty-eight million, eight thousand, eight hundred eighty-two".