23239228 has 12 divisors (see below), whose sum is σ = 41436360. Its totient is φ = 11400272.

The previous prime is 23239217. The next prime is 23239247. The reversal of 23239228 is 82293232.

It is a self number, because there is not a number n which added to its sum of digits gives 23239228.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54598 + ... + 55021.

It is an arithmetic number, because the mean of its divisors is an integer number (3453030).

Almost surely, 2^23239228 is an apocalyptic number.

It is an amenable number.

23239228 is a deficient number, since it is larger than the sum of its proper divisors (18197132).

23239228 is a wasteful number, since it uses less digits than its factorization.

23239228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109676 (or 109674 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 23239228 is about 4820.7082467206. The cubic root of 23239228 is about 285.3692883962.

The spelling of 23239228 in words is "twenty-three million, two hundred thirty-nine thousand, two hundred twenty-eight".