172268288 has 72 divisors (see below), whose sum is σ = 366448320. Its totient is φ = 80593920.

The previous prime is 172268267. The next prime is 172268297. The reversal of 172268288 is 882862271.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520283 + ... + 520613.

It is an arithmetic number, because the mean of its divisors is an integer number (5089560).

Almost surely, 2^172268288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172268288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183224160).

172268288 is an abundant number, since it is smaller than the sum of its proper divisors (194180032).

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

172268288 is a wasteful number, since it uses less digits than its factorization.

172268288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473 (or 459 counting only the distinct ones).

The product of its digits is 172032, while the sum is 44.

The square root of 172268288 is about 13125.1014472270. The cubic root of 172268288 is about 556.4187794358.

The spelling of 172268288 in words is "one hundred seventy-two million, two hundred sixty-eight thousand, two hundred eighty-eight".