28520096 has 24 divisors (see below), whose sum is σ = 61254144. Its totient is φ = 12963520.

The previous prime is 28520059. The next prime is 28520099. The reversal of 28520096 is 69002582.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (28520099) 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, 40160 + ... + 40863.

It is an arithmetic number, because the mean of its divisors is an integer number (2552256).

Almost surely, 2^28520096 is an apocalyptic number.

It is an amenable number.

28520096 is an abundant number, since it is smaller than the sum of its proper divisors (32734048).

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

28520096 is a wasteful number, since it uses less digits than its factorization.

28520096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81044 (or 81036 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 28520096 is about 5340.4209571905. The cubic root of 28520096 is about 305.5275149487.

Adding to 28520096 its sum of digits (32), we get a triangular number (28520128 = T₇₅₅₂).

The spelling of 28520096 in words is "twenty-eight million, five hundred twenty thousand, ninety-six".