28842266 has 16 divisors (see below), whose sum is σ = 45988800. Its totient is φ = 13527648.

The previous prime is 28842241. The next prime is 28842287. The reversal of 28842266 is 66224882.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230 + ... + 7598.

It is an arithmetic number, because the mean of its divisors is an integer number (2874300).

Almost surely, 2^28842266 is an apocalyptic number.

28842266 is a deficient number, since it is larger than the sum of its proper divisors (17146534).

28842266 is a wasteful number, since it uses less digits than its factorization.

28842266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7493.

The product of its digits is 73728, while the sum is 38.

The square root of 28842266 is about 5370.4996043199. The cubic root of 28842266 is about 306.6736479717.

The spelling of 28842266 in words is "twenty-eight million, eight hundred forty-two thousand, two hundred sixty-six".