28552268 has 24 divisors (see below), whose sum is σ = 50979600. Its totient is φ = 13989888.

The previous prime is 28552253. The next prime is 28552273. The reversal of 28552268 is 86225582.

It is a happy number.

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, 49196 + ... + 49772.

It is an arithmetic number, because the mean of its divisors is an integer number (2124150).

Almost surely, 2^28552268 is an apocalyptic number.

It is an amenable number.

28552268 is a deficient number, since it is larger than the sum of its proper divisors (22427332).

28552268 is a wasteful number, since it uses less digits than its factorization.

28552268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809 (or 807 counting only the distinct ones).

The product of its digits is 76800, while the sum is 38.

The square root of 28552268 is about 5343.4322303179. The cubic root of 28552268 is about 305.6423548790.

The spelling of 28552268 in words is "twenty-eight million, five hundred fifty-two thousand, two hundred sixty-eight".