23165830 has 32 divisors (see below), whose sum is σ = 44457984. Its totient is φ = 8670816.

The previous prime is 23165803. The next prime is 23165839. The reversal of 23165830 is 3856132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23165839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9739 + ... + 11881.

It is an arithmetic number, because the mean of its divisors is an integer number (1389312).

Almost surely, 2^23165830 is an apocalyptic number.

23165830 is a deficient number, since it is larger than the sum of its proper divisors (21292154).

23165830 is a wasteful number, since it uses less digits than its factorization.

23165830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 23165830 is about 4813.0894444213. The cubic root of 23165830 is about 285.0685379434.

The spelling of 23165830 in words is "twenty-three million, one hundred sixty-five thousand, eight hundred thirty".