28933226 has 12 divisors (see below), whose sum is σ = 50485698. Its totient is φ = 12399912.

The previous prime is 28933217. The next prime is 28933259. The reversal of 28933226 is 62233982.

It can be written as a sum of positive squares in only one way, i.e., 27931225 + 1002001 = 5285^2 + 1001^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 147521 + ... + 147716.

Almost surely, 2^28933226 is an apocalyptic number.

28933226 is a deficient number, since it is larger than the sum of its proper divisors (21552472).

28933226 is a wasteful number, since it uses less digits than its factorization.

28933226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295253 (or 295246 counting only the distinct ones).

The product of its digits is 31104, while the sum is 35.

The square root of 28933226 is about 5378.9614239182. The cubic root of 28933226 is about 306.9956957384.

The spelling of 28933226 in words is "twenty-eight million, nine hundred thirty-three thousand, two hundred twenty-six".