28118266 has 16 divisors (see below), whose sum is σ = 46096128. Its totient is φ = 12757600.

The previous prime is 28118257. The next prime is 28118287. The reversal of 28118266 is 66281182.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18246 + ... + 19726.

It is an arithmetic number, because the mean of its divisors is an integer number (2881008).

Almost surely, 2^28118266 is an apocalyptic number.

28118266 is a deficient number, since it is larger than the sum of its proper divisors (17977862).

28118266 is a wasteful number, since it uses less digits than its factorization.

28118266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357.

The product of its digits is 9216, while the sum is 34.

The square root of 28118266 is about 5302.6659332830. The cubic root of 28118266 is about 304.0858267016.

The spelling of 28118266 in words is "twenty-eight million, one hundred eighteen thousand, two hundred sixty-six".