28245208 has 24 divisors (see below), whose sum is σ = 54450900. Its totient is φ = 13735584.

The previous prime is 28245199. The next prime is 28245227. The reversal of 28245208 is 80254282.

It is a self number, because there is not a number n which added to its sum of digits gives 28245208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9663 + ... + 12241.

Almost surely, 2^28245208 is an apocalyptic number.

It is an amenable number.

28245208 is a deficient number, since it is larger than the sum of its proper divisors (26205692).

28245208 is a wasteful number, since it uses less digits than its factorization.

28245208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659 (or 2618 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 28245208 is about 5314.6220938087. The cubic root of 28245208 is about 304.5427458071.

The spelling of 28245208 in words is "twenty-eight million, two hundred forty-five thousand, two hundred eight".