28872150 has 48 divisors (see below), whose sum is σ = 72638208. Its totient is φ = 7588000.

The previous prime is 28872127. The next prime is 28872161. The reversal of 28872150 is 5127882.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9295 + ... + 12005.

It is an arithmetic number, because the mean of its divisors is an integer number (1513296).

Almost surely, 2^28872150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28872150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36319104).

28872150 is an abundant number, since it is smaller than the sum of its proper divisors (43766058).

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

28872150 is a wasteful number, since it uses less digits than its factorization.

28872150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2797 (or 2792 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 28872150 is about 5373.2811205073. The cubic root of 28872150 is about 306.7795281396.

The spelling of 28872150 in words is "twenty-eight million, eight hundred seventy-two thousand, one hundred fifty".