28227226 has 16 divisors (see below), whose sum is σ = 43748640. Its totient is φ = 13649040.

The previous prime is 28227211. The next prime is 28227239. The reversal of 28227226 is 62272282.

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, 12181 + ... + 14311.

It is an arithmetic number, because the mean of its divisors is an integer number (2734290).

Almost surely, 2^28227226 is an apocalyptic number.

28227226 is a deficient number, since it is larger than the sum of its proper divisors (15521414).

28227226 is a wasteful number, since it uses less digits than its factorization.

28227226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349.

The product of its digits is 10752, while the sum is 31.

The square root of 28227226 is about 5312.9300767091. The cubic root of 28227226 is about 304.4781041612.

It can be divided in two parts, 2 and 8227226, that added together give a palindrome (8227228).

The spelling of 28227226 in words is "twenty-eight million, two hundred twenty-seven thousand, two hundred twenty-six".