28500456 has 32 divisors (see below), whose sum is σ = 75002400. Its totient is φ = 9000000.

The previous prime is 28500401. The next prime is 28500463. The reversal of 28500456 is 65400582.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30795 + ... + 31706.

It is an arithmetic number, because the mean of its divisors is an integer number (2343825).

Almost surely, 2^28500456 is an apocalyptic number.

It is an amenable number.

28500456 is an abundant number, since it is smaller than the sum of its proper divisors (46501944).

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

28500456 is a wasteful number, since it uses less digits than its factorization.

28500456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62529 (or 62525 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 28500456 is about 5338.5818341578. The cubic root of 28500456 is about 305.4573663031.

The spelling of 28500456 in words is "twenty-eight million, five hundred thousand, four hundred fifty-six".