23164188 has 12 divisors (see below), whose sum is σ = 54049800. Its totient is φ = 7721392.

The previous prime is 23164171. The next prime is 23164189. The reversal of 23164188 is 88146132.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23164189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 965163 + ... + 965186.

It is an arithmetic number, because the mean of its divisors is an integer number (4504150).

Almost surely, 2^23164188 is an apocalyptic number.

It is an amenable number.

23164188 is an abundant number, since it is smaller than the sum of its proper divisors (30885612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23164188 is a wasteful number, since it uses less digits than its factorization.

23164188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1930356 (or 1930354 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 23164188 is about 4812.9188648885. The cubic root of 23164188 is about 285.0618025405.

Adding to 23164188 its sum of digits (33), we get a triangular number (23164221 = T₆₈₀₆).

The spelling of 23164188 in words is "twenty-three million, one hundred sixty-four thousand, one hundred eighty-eight".