28941200 has 30 divisors (see below), whose sum is σ = 69532194. Its totient is φ = 11576320.

The previous prime is 28941181. The next prime is 28941229. The reversal of 28941200 is 214982.

It can be written as a sum of positive squares in 3 ways, for example, as 8111104 + 20830096 = 2848^2 + 4564^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28941200.

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, 35777 + ... + 36576.

Almost surely, 2^28941200 is an apocalyptic number.

28941200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28941200 is an abundant number, since it is smaller than the sum of its proper divisors (40590994).

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

28941200 is a wasteful number, since it uses less digits than its factorization.

28941200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72371 (or 72360 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 28941200 is about 5379.7025940102. The cubic root of 28941200 is about 307.0238958294.

The spelling of 28941200 in words is "twenty-eight million, nine hundred forty-one thousand, two hundred".