28280298 has 32 divisors (see below), whose sum is σ = 58046976. Its totient is φ = 9182448.

The previous prime is 28280297. The next prime is 28280311. The reversal of 28280298 is 89208282.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28280297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41065 + ... + 41747.

It is an arithmetic number, because the mean of its divisors is an integer number (1813968).

Almost surely, 2^28280298 is an apocalyptic number.

28280298 is an abundant number, since it is smaller than the sum of its proper divisors (29766678).

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

28280298 is a wasteful number, since it uses less digits than its factorization.

28280298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858.

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 28280298 is about 5317.9223386582. The cubic root of 28280298 is about 304.6688082840.

The spelling of 28280298 in words is "twenty-eight million, two hundred eighty thousand, two hundred ninety-eight".