28500260 has 24 divisors (see below), whose sum is σ = 60188856. Its totient is φ = 11335680.

The previous prime is 28500239. The next prime is 28500287. The reversal of 28500260 is 6200582.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2876416 + 25623844 = 1696^2 + 5062^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317 + ... + 7556.

It is an arithmetic number, because the mean of its divisors is an integer number (2507869).

Almost surely, 2^28500260 is an apocalyptic number.

28500260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28500260 is an abundant number, since it is smaller than the sum of its proper divisors (31688596).

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

28500260 is a wasteful number, since it uses less digits than its factorization.

28500260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8063 (or 8061 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 28500260 is about 5338.5634771912. The cubic root of 28500260 is about 305.4566660829.

The spelling of 28500260 in words is "twenty-eight million, five hundred thousand, two hundred sixty".