28227244 has 6 divisors (see below), whose sum is σ = 49397684. Its totient is φ = 14113620.

The previous prime is 28227239. The next prime is 28227247. The reversal of 28227244 is 44272282.

It is not an unprimeable number, because it can be changed into a prime (28227247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3528402 + ... + 3528409.

Almost surely, 2^28227244 is an apocalyptic number.

It is an amenable number.

28227244 is a deficient number, since it is larger than the sum of its proper divisors (21170440).

28227244 is a wasteful number, since it uses less digits than its factorization.

28227244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7056815 (or 7056813 counting only the distinct ones).

The product of its digits is 14336, while the sum is 31.

The square root of 28227244 is about 5312.9317706893. The cubic root of 28227244 is about 304.4781688813.

The spelling of 28227244 in words is "twenty-eight million, two hundred twenty-seven thousand, two hundred forty-four".