28801080 has 192 divisors, whose sum is σ = 116812800. Its totient is φ = 5978880.

The previous prime is 28801063. The next prime is 28801117. The reversal of 28801080 is 8010882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27201 + ... + 28239.

It is an arithmetic number, because the mean of its divisors is an integer number (608400).

Almost surely, 2^28801080 is an apocalyptic number.

28801080 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 28801080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58406400).

28801080 is an abundant number, since it is smaller than the sum of its proper divisors (88011720).

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

28801080 is a wasteful number, since it uses less digits than its factorization.

28801080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074 (or 1067 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 28801080 is about 5366.6637681152. The cubic root of 28801080 is about 306.5276044567.

It can be divided in two parts, 28 and 801080, that added together give a palindrome (801108).

The spelling of 28801080 in words is "twenty-eight million, eight hundred one thousand, eighty".