9172914220 has 12 divisors (see below), whose sum is σ = 19263119904. Its totient is φ = 3669165680.

The previous prime is 9172914203. The next prime is 9172914227. The reversal of 9172914220 is 224192719.

It is a self number, because there is not a number n which added to its sum of digits gives 9172914220.

It is not an unprimeable number, because it can be changed into a prime (9172914227) 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, 229322836 + ... + 229322875.

It is an arithmetic number, because the mean of its divisors is an integer number (1605259992).

Almost surely, 2^9172914220 is an apocalyptic number.

It is an amenable number.

9172914220 is an abundant number, since it is smaller than the sum of its proper divisors (10090205684).

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

9172914220 is a wasteful number, since it uses less digits than its factorization.

9172914220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458645720 (or 458645718 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 9172914220 is about 95775.3320015128. The cubic root of 9172914220 is about 2093.3207452441.

The spelling of 9172914220 in words is "nine billion, one hundred seventy-two million, nine hundred fourteen thousand, two hundred twenty".