23172246 has 12 divisors (see below), whose sum is σ = 50206572. Its totient is φ = 7724076.

The previous prime is 23172239. The next prime is 23172251. The reversal of 23172246 is 64227132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 643656 + ... + 643691.

It is an arithmetic number, because the mean of its divisors is an integer number (4183881).

Almost surely, 2^23172246 is an apocalyptic number.

23172246 is an abundant number, since it is smaller than the sum of its proper divisors (27034326).

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

23172246 is a wasteful number, since it uses less digits than its factorization.

23172246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287355 (or 1287352 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 23172246 is about 4813.7559140447. The cubic root of 23172246 is about 285.0948530076.

Adding to 23172246 its reverse (64227132), we get a palindrome (87399378).

The spelling of 23172246 in words is "twenty-three million, one hundred seventy-two thousand, two hundred forty-six".