28290150 has 108 divisors (see below), whose sum is σ = 88484292. Its totient is φ = 6461280.

The previous prime is 28290131. The next prime is 28290151. The reversal of 28290150 is 5109282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28290151) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 21409 + ... + 22691.

It is an arithmetic number, because the mean of its divisors is an integer number (819299).

Almost surely, 2^28290150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28290150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44242146).

28290150 is an abundant number, since it is smaller than the sum of its proper divisors (60194142).

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

28290150 is a wasteful number, since it uses less digits than its factorization.

28290150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315 (or 1300 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 28290150 is about 5318.8485596039. The cubic root of 28290150 is about 304.7041833074.

The spelling of 28290150 in words is "twenty-eight million, two hundred ninety thousand, one hundred fifty".