28318850 has 24 divisors (see below), whose sum is σ = 60198528. Its totient is φ = 9709200.

The previous prime is 28318813. The next prime is 28318861. The reversal of 28318850 is 5881382.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28318850.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40106 + ... + 40805.

It is an arithmetic number, because the mean of its divisors is an integer number (2508272).

Almost surely, 2^28318850 is an apocalyptic number.

28318850 is an abundant number, since it is smaller than the sum of its proper divisors (31879678).

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

28318850 is a wasteful number, since it uses less digits than its factorization.

28318850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80930 (or 80925 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 28318850 is about 5321.5458280466. The cubic root of 28318850 is about 304.8071879986.

The spelling of 28318850 in words is "twenty-eight million, three hundred eighteen thousand, eight hundred fifty".