28560384 has 88 divisors (see below), whose sum is σ = 84663920. Its totient is φ = 9510912.

The previous prime is 28560379. The next prime is 28560403. The reversal of 28560384 is 48306582.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

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, 27132 + ... + 28164.

It is an arithmetic number, because the mean of its divisors is an integer number (962090).

Almost surely, 2^28560384 is an apocalyptic number.

28560384 is a gapful number since it is divisible by the number (24) 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 28560384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42331960).

28560384 is an abundant number, since it is smaller than the sum of its proper divisors (56103536).

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

28560384 is a wasteful number, since it uses less digits than its factorization.

28560384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062 (or 1038 counting only the distinct ones).

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

The square root of 28560384 is about 5344.1916133312. The cubic root of 28560384 is about 305.6713118122.

The spelling of 28560384 in words is "twenty-eight million, five hundred sixty thousand, three hundred eighty-four".