28843560 has 128 divisors (see below), whose sum is σ = 101865600. Its totient is φ = 7234560.

The previous prime is 28843559. The next prime is 28843597. The reversal of 28843560 is 6534882.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17575 + ... + 19145.

It is an arithmetic number, because the mean of its divisors is an integer number (795825).

Almost surely, 2^28843560 is an apocalyptic number.

28843560 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 28843560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50932800).

28843560 is an abundant number, since it is smaller than the sum of its proper divisors (73022040).

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

28843560 is a wasteful number, since it uses less digits than its factorization.

28843560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608 (or 1598 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 28843560 is about 5370.6200759316. The cubic root of 28843560 is about 306.6782341782.

It can be divided in two parts, 28843 and 560, that added together give a triangular number (29403 = T₂₄₂).

The spelling of 28843560 in words is "twenty-eight million, eight hundred forty-three thousand, five hundred sixty".