28140848 has 40 divisors (see below), whose sum is σ = 58090032. Its totient is φ = 13160448.

The previous prime is 28140829. The next prime is 28140863. The reversal of 28140848 is 84804182.

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, 83336 + ... + 83672.

Almost surely, 2^28140848 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 28140848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29045016).

28140848 is an abundant number, since it is smaller than the sum of its proper divisors (29949184).

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

28140848 is a wasteful number, since it uses less digits than its factorization.

28140848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669 (or 663 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 35.

The square root of 28140848 is about 5304.7948122430. The cubic root of 28140848 is about 304.1672094901.

The spelling of 28140848 in words is "twenty-eight million, one hundred forty thousand, eight hundred forty-eight".