28008448 has 56 divisors (see below), whose sum is σ = 60551568. Its totient is φ = 12877824.

The previous prime is 28008443. The next prime is 28008473. The reversal of 28008448 is 84480082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28008443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106365 + ... + 106627.

It is an arithmetic number, because the mean of its divisors is an integer number (1081278).

Almost surely, 2^28008448 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 28008448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30275784).

28008448 is an abundant number, since it is smaller than the sum of its proper divisors (32543120).

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

28008448 is an equidigital number, since it uses as much as digits as its factorization.

28008448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 34.

The square root of 28008448 is about 5292.3008228936. The cubic root of 28008448 is about 303.6894335258.

The spelling of 28008448 in words is "twenty-eight million, eight thousand, four hundred forty-eight".