28584238224 has 80 divisors (see below), whose sum is σ = 74731377600. Its totient is φ = 9413572608.

The previous prime is 28584238213. The next prime is 28584238247. The reversal of 28584238224 is 42283248582.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8922607 + ... + 8925809.

It is an arithmetic number, because the mean of its divisors is an integer number (934142220).

Almost surely, 2^28584238224 is an apocalyptic number.

28584238224 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 28584238224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37365688800).

28584238224 is an abundant number, since it is smaller than the sum of its proper divisors (46147139376).

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

28584238224 is a wasteful number, since it uses less digits than its factorization.

28584238224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5392 (or 5386 counting only the distinct ones).

The product of its digits is 1966080, while the sum is 48.

The spelling of 28584238224 in words is "twenty-eight billion, five hundred eighty-four million, two hundred thirty-eight thousand, two hundred twenty-four".