23189232 has 80 divisors (see below), whose sum is σ = 67174272. Its totient is φ = 6831360.

The previous prime is 23189213. The next prime is 23189233. The reversal of 23189232 is 23298132.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23189232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23189233) 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, 18943 + ... + 20129.

Almost surely, 2^23189232 is an apocalyptic number.

23189232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23189232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33587136).

23189232 is an abundant number, since it is smaller than the sum of its proper divisors (43985040).

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

23189232 is a wasteful number, since it uses less digits than its factorization.

23189232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246 (or 1240 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 23189232 is about 4815.5199096255. The cubic root of 23189232 is about 285.1644972189.

Subtracting 23189232 from its reverse (23298132), we obtain a square (108900 = 330²).

The spelling of 23189232 in words is "twenty-three million, one hundred eighty-nine thousand, two hundred thirty-two".