28982266 has 8 divisors (see below), whose sum is σ = 43496244. Its totient is φ = 14483520.

The previous prime is 28982249. The next prime is 28982267. The reversal of 28982266 is 66228982.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26163225 + 2819041 = 5115^2 + 1679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (28982267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5596 + ... + 9448.

Almost surely, 2^28982266 is an apocalyptic number.

28982266 is a deficient number, since it is larger than the sum of its proper divisors (14513978).

28982266 is a wasteful number, since it uses less digits than its factorization.

28982266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7616.

The product of its digits is 165888, while the sum is 43.

The square root of 28982266 is about 5383.5179947688. The cubic root of 28982266 is about 307.1690439750.

The spelling of 28982266 in words is "twenty-eight million, nine hundred eighty-two thousand, two hundred sixty-six".