28044256 has 48 divisors (see below), whose sum is σ = 57380400. Its totient is φ = 13483008.

The previous prime is 28044253. The next prime is 28044259. The reversal of 28044256 is 65244082.

It is an interprime number because it is at equal distance from previous prime (28044253) and next prime (28044259).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28044253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122350 + ... + 122578.

It is an arithmetic number, because the mean of its divisors is an integer number (1195425).

Almost surely, 2^28044256 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 28044256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28690200).

28044256 is an abundant number, since it is smaller than the sum of its proper divisors (29336144).

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

28044256 is a wasteful number, since it uses less digits than its factorization.

28044256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 28044256 is about 5295.6827699552. The cubic root of 28044256 is about 303.8187978313.

The spelling of 28044256 in words is "twenty-eight million, forty-four thousand, two hundred fifty-six".