28108000 has 48 divisors (see below), whose sum is σ = 69071184. Its totient is φ = 11241600.

The previous prime is 28107991. The next prime is 28108019. The reversal of 28108000 is 80182.

It is a happy number.

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, 487 + ... + 7513.

It is an arithmetic number, because the mean of its divisors is an integer number (1438983).

Almost surely, 2^28108000 is an apocalyptic number.

28108000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28108000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34535592).

28108000 is an abundant number, since it is smaller than the sum of its proper divisors (40963184).

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

28108000 is an equidigital number, since it uses as much as digits as its factorization.

28108000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7052 (or 7034 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 28108000 is about 5301.6978412580. The cubic root of 28108000 is about 304.0488148758.

Adding to 28108000 its reverse (80182), we get a palindrome (28188182).

The spelling of 28108000 in words is "twenty-eight million, one hundred eight thousand".