28350528 has 56 divisors (see below), whose sum is σ = 75590400. Its totient is φ = 9377280.

The previous prime is 28350521. The next prime is 28350563. The reversal of 28350528 is 82505382.

It is not an unprimeable number, because it can be changed into a prime (28350521) 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, 28113 + ... + 29103.

Almost surely, 2^28350528 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 28350528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37795200).

28350528 is an abundant number, since it is smaller than the sum of its proper divisors (47239872).

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

28350528 is a wasteful number, since it uses less digits than its factorization.

28350528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155 (or 1145 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 28350528 is about 5324.5213869417. The cubic root of 28350528 is about 304.9208000037.

The spelling of 28350528 in words is "twenty-eight million, three hundred fifty thousand, five hundred twenty-eight".