28282239936 has 140 divisors (see below), whose sum is σ = 88250222280. Its totient is φ = 8931202560.

The previous prime is 28282239929. The next prime is 28282240001. The reversal of 28282239936 is 63993228282.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 45075 + ... + 242066.

Almost surely, 2^28282239936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28282239936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44125111140).

28282239936 is an abundant number, since it is smaller than the sum of its proper divisors (59967982344).

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

28282239936 is a wasteful number, since it uses less digits than its factorization.

28282239936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287184 (or 287165 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The spelling of 28282239936 in words is "twenty-eight billion, two hundred eighty-two million, two hundred thirty-nine thousand, nine hundred thirty-six".