23173228 has 24 divisors (see below), whose sum is σ = 44233280. Its totient is φ = 10558080.

The previous prime is 23173181. The next prime is 23173231. The reversal of 23173228 is 82237132.

It is a junction number, because it is equal to n+sod(n) for n = 23173196 and 23173205.

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, 1288 + ... + 6928.

Almost surely, 2^23173228 is an apocalyptic number.

It is an amenable number.

23173228 is a deficient number, since it is larger than the sum of its proper divisors (21060052).

23173228 is a wasteful number, since it uses less digits than its factorization.

23173228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5737 (or 5735 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 23173228 is about 4813.8579123194. The cubic root of 23173228 is about 285.0988802275.

The spelling of 23173228 in words is "twenty-three million, one hundred seventy-three thousand, two hundred twenty-eight".