28089200 has 30 divisors (see below), whose sum is σ = 67485264. Its totient is φ = 11235520.

The previous prime is 28089181. The next prime is 28089241. The reversal of 28089200 is 298082.

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 34712 + ... + 35511.

Almost surely, 2^28089200 is an apocalyptic number.

28089200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28089200 is an abundant number, since it is smaller than the sum of its proper divisors (39396064).

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

28089200 is a wasteful number, since it uses less digits than its factorization.

28089200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70241 (or 70230 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 28089200 is about 5299.9245277645. The cubic root of 28089200 is about 303.9810122028.

The spelling of 28089200 in words is "twenty-eight million, eighty-nine thousand, two hundred".