23172042 has 8 divisors (see below), whose sum is σ = 46344096. Its totient is φ = 7724012.

The previous prime is 23172041. The next prime is 23172049. The reversal of 23172042 is 24027132.

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

23172042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (23172041) 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, 1930998 + ... + 1931009.

It is an arithmetic number, because the mean of its divisors is an integer number (5793012).

Almost surely, 2^23172042 is an apocalyptic number.

23172042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23172042 is a wasteful number, since it uses less digits than its factorization.

23172042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3862012.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 23172042 is about 4813.7347247226. The cubic root of 23172042 is about 285.0940163815.

Adding to 23172042 its reverse (24027132), we get a palindrome (47199174).

The spelling of 23172042 in words is "twenty-three million, one hundred seventy-two thousand, forty-two".