28869200 has 30 divisors (see below), whose sum is σ = 69359214. Its totient is φ = 11547520.

The previous prime is 28869199. The next prime is 28869221. The reversal of 28869200 is 296882.

It can be written as a sum of positive squares in 3 ways, for example, as 10816 + 28858384 = 104^2 + 5372^2 .

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, 35687 + ... + 36486.

Almost surely, 2^28869200 is an apocalyptic number.

28869200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28869200 is an abundant number, since it is smaller than the sum of its proper divisors (40490014).

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

28869200 is a wasteful number, since it uses less digits than its factorization.

28869200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72191 (or 72180 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 28869200 is about 5373.0066071056. The cubic root of 28869200 is about 306.7690794266.

The spelling of 28869200 in words is "twenty-eight million, eight hundred sixty-nine thousand, two hundred".