28290850 has 24 divisors (see below), whose sum is σ = 60139008. Its totient is φ = 9699600.

The previous prime is 28290833. The next prime is 28290853. The reversal of 28290850 is 5809282.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28290853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40066 + ... + 40765.

It is an arithmetic number, because the mean of its divisors is an integer number (2505792).

Almost surely, 2^28290850 is an apocalyptic number.

28290850 is an abundant number, since it is smaller than the sum of its proper divisors (31848158).

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

28290850 is a wasteful number, since it uses less digits than its factorization.

28290850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80850 (or 80845 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 28290850 is about 5318.9143629128. The cubic root of 28290850 is about 304.7066964456.

The spelling of 28290850 in words is "twenty-eight million, two hundred ninety thousand, eight hundred fifty".