28880082 has 96 divisors (see below), whose sum is σ = 79432704. Its totient is φ = 7365600.

The previous prime is 28880077. The next prime is 28880107. The reversal of 28880082 is 28008882.

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 47 ways as a sum of consecutive naturals, for example, 92707 + ... + 93017.

It is an arithmetic number, because the mean of its divisors is an integer number (827424).

Almost surely, 2^28880082 is an apocalyptic number.

28880082 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 28880082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39716352).

28880082 is an abundant number, since it is smaller than the sum of its proper divisors (50552622).

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

28880082 is a wasteful number, since it uses less digits than its factorization.

28880082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 401 counting only the distinct ones).

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

The square root of 28880082 is about 5374.0191663224. The cubic root of 28880082 is about 306.8076192518.

It can be divided in two parts, 288800 and 82, that added together give a palindrome (288882).

The spelling of 28880082 in words is "twenty-eight million, eight hundred eighty thousand, eighty-two".