28200208 has 20 divisors (see below), whose sum is σ = 57014208. Its totient is φ = 13486880.

The previous prime is 28200203. The next prime is 28200241. The reversal of 28200208 is 80200282.

It is not an unprimeable number, because it can be changed into a prime (28200203) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 37948 + ... + 38683.

Almost surely, 2^28200208 is an apocalyptic number.

It is an amenable number.

28200208 is an abundant number, since it is smaller than the sum of its proper divisors (28814000).

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

28200208 is a wasteful number, since it uses less digits than its factorization.

28200208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76662 (or 76656 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 28200208 is about 5310.3868032376. The cubic root of 28200208 is about 304.3809282942.

The spelling of 28200208 in words is "twenty-eight million, two hundred thousand, two hundred eight".