172238080 has 144 divisors (see below), whose sum is σ = 482711040. Its totient is φ = 57655296.

The previous prime is 172238063. The next prime is 172238083. The reversal of 172238080 is 80832271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172238083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420916 + ... + 421324.

It is an arithmetic number, because the mean of its divisors is an integer number (3352160).

Almost surely, 2^172238080 is an apocalyptic number.

172238080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172238080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241355520).

172238080 is an abundant number, since it is smaller than the sum of its proper divisors (310472960).

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

172238080 is an equidigital number, since it uses as much as digits as its factorization.

172238080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 172238080 is about 13123.9506247166. The cubic root of 172238080 is about 556.3862540433.

The spelling of 172238080 in words is "one hundred seventy-two million, two hundred thirty-eight thousand, eighty".