23172242 has 8 divisors (see below), whose sum is σ = 34784256. Its totient is φ = 11577492.

The previous prime is 23172239. The next prime is 23172251. The reversal of 23172242 is 24227132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 158 + ... + 6809.

It is an arithmetic number, because the mean of its divisors is an integer number (4348032).

Almost surely, 2^23172242 is an apocalyptic number.

23172242 is a deficient number, since it is larger than the sum of its proper divisors (11612014).

23172242 is a wasteful number, since it uses less digits than its factorization.

23172242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8632.

The product of its digits is 1344, while the sum is 23.

The square root of 23172242 is about 4813.7554985687. The cubic root of 23172242 is about 285.0948366032.

Adding to 23172242 its reverse (24227132), we get a palindrome (47399374).

The spelling of 23172242 in words is "twenty-three million, one hundred seventy-two thousand, two hundred forty-two".