28228848 has 80 divisors (see below), whose sum is σ = 76756992. Its totient is φ = 8928000.

The previous prime is 28228831. The next prime is 28228853. The reversal of 28228848 is 84882282.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 90613 + ... + 90923.

Almost surely, 2^28228848 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 28228848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38378496).

28228848 is an abundant number, since it is smaller than the sum of its proper divisors (48528144).

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

28228848 is a wasteful number, since it uses less digits than its factorization.

28228848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 408 counting only the distinct ones).

The product of its digits is 131072, while the sum is 42.

The square root of 28228848 is about 5313.0827209822. The cubic root of 28228848 is about 304.4839360488.

The spelling of 28228848 in words is "twenty-eight million, two hundred twenty-eight thousand, eight hundred forty-eight".