28048256 has 48 divisors (see below), whose sum is σ = 59070240. Its totient is φ = 13264128.

The previous prime is 28048253. The next prime is 28048301. The reversal of 28048256 is 65284082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28048253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45905 + ... + 46511.

It is an arithmetic number, because the mean of its divisors is an integer number (1230630).

Almost surely, 2^28048256 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 28048256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29535120).

28048256 is an abundant number, since it is smaller than the sum of its proper divisors (31021984).

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

28048256 is an equidigital number, since it uses as much as digits as its factorization.

28048256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 28048256 is about 5296.0604226160. The cubic root of 28048256 is about 303.8332418755.

The spelling of 28048256 in words is "twenty-eight million, forty-eight thousand, two hundred fifty-six".