28885056 has 112 divisors (see below), whose sum is σ = 82710528. Its totient is φ = 8870400.

The previous prime is 28885013. The next prime is 28885061. The reversal of 28885056 is 65058882.

It is a junction number, because it is equal to n+sod(n) for n = 28884999 and 28885017.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136791 + ... + 137001.

Almost surely, 2^28885056 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 28885056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41355264).

28885056 is an abundant number, since it is smaller than the sum of its proper divisors (53825472).

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

28885056 is a wasteful number, since it uses less digits than its factorization.

28885056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 42.

The square root of 28885056 is about 5374.4819285211. The cubic root of 28885056 is about 306.8252320076.

The spelling of 28885056 in words is "twenty-eight million, eight hundred eighty-five thousand, fifty-six".