20237172 has 24 divisors (see below), whose sum is σ = 48744192. Its totient is φ = 6528000.

The previous prime is 20237167. The next prime is 20237179. The reversal of 20237172 is 27173202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20237179) 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 7 ways as a sum of consecutive naturals, for example, 26829 + ... + 27572.

It is an arithmetic number, because the mean of its divisors is an integer number (2031008).

Almost surely, 2^20237172 is an apocalyptic number.

It is an amenable number.

20237172 is an abundant number, since it is smaller than the sum of its proper divisors (28507020).

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

20237172 is a wasteful number, since it uses less digits than its factorization.

20237172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54439 (or 54437 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 20237172 is about 4498.5744408646. The cubic root of 20237172 is about 272.5105211548.

The spelling of 20237172 in words is "twenty million, two hundred thirty-seven thousand, one hundred seventy-two".