28200200 has 48 divisors (see below), whose sum is σ = 74935680. Its totient is φ = 9668160.

The previous prime is 28200191. The next prime is 28200203. The reversal of 28200200 is 200282.

It is a Harshad number since it is a multiple of its sum of digits (14).

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 11 ways as a sum of consecutive naturals, for example, 8672 + ... + 11471.

It is an arithmetic number, because the mean of its divisors is an integer number (1561160).

Almost surely, 2^28200200 is an apocalyptic number.

28200200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28200200 is an abundant number, since it is smaller than the sum of its proper divisors (46735480).

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

28200200 is a wasteful number, since it uses less digits than its factorization.

28200200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20166 (or 20157 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 28200200 is about 5310.3860499967. The cubic root of 28200200 is about 304.3808995114.

Adding to 28200200 its reverse (200282), we get a palindrome (28400482).

The spelling of 28200200 in words is "twenty-eight million, two hundred thousand, two hundred".