28480896 has 160 divisors (see below), whose sum is σ = 88121880. Its totient is φ = 9123840.

The previous prime is 28480883. The next prime is 28480897. The reversal of 28480896 is 69808482.

It is a happy number.

It is a super-2 number, since 2×28480896² = 1622322873925632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28480897) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 425055 + ... + 425121.

Almost surely, 2^28480896 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 28480896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44060940).

28480896 is an abundant number, since it is smaller than the sum of its proper divisors (59640984).

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

28480896 is an equidigital number, since it uses as much as digits as its factorization.

28480896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 28480896 is about 5336.7495725394. The cubic root of 28480896 is about 305.3874713578.

The spelling of 28480896 in words is "twenty-eight million, four hundred eighty thousand, eight hundred ninety-six".