28875150 has 96 divisors (see below), whose sum is σ = 80932320. Its totient is φ = 7568640.

The previous prime is 28875113. The next prime is 28875169. The reversal of 28875150 is 5157882.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 98404 + ... + 98696.

It is an arithmetic number, because the mean of its divisors is an integer number (843045).

Almost surely, 2^28875150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28875150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40466160).

28875150 is an abundant number, since it is smaller than the sum of its proper divisors (52057170).

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

28875150 is a wasteful number, since it uses less digits than its factorization.

28875150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 28875150 is about 5373.5602722962. The cubic root of 28875150 is about 306.7901532196.

The spelling of 28875150 in words is "twenty-eight million, eight hundred seventy-five thousand, one hundred fifty".