28560800 has 72 divisors (see below), whose sum is σ = 73432800. Its totient is φ = 10817280.

The previous prime is 28560797. The next prime is 28560811. The reversal of 28560800 is 806582.

It is a happy number.

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 11 ways as a sum of consecutive naturals, for example, 14261 + ... + 16139.

It is an arithmetic number, because the mean of its divisors is an integer number (1019900).

Almost surely, 2^28560800 is an apocalyptic number.

28560800 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 28560800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36716400).

28560800 is an abundant number, since it is smaller than the sum of its proper divisors (44872000).

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

28560800 is a wasteful number, since it uses less digits than its factorization.

28560800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918 (or 1905 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 28560800 is about 5344.2305339497. The cubic root of 28560800 is about 305.6727959034.

The spelling of 28560800 in words is "twenty-eight million, five hundred sixty thousand, eight hundred".