172449168 has 80 divisors (see below), whose sum is σ = 472082880. Its totient is φ = 54093312.

The previous prime is 172449143. The next prime is 172449209. The reversal of 172449168 is 861944271.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 157230 + ... + 158322.

It is an arithmetic number, because the mean of its divisors is an integer number (5901036).

Almost surely, 2^172449168 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 172449168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236041440).

172449168 is an abundant number, since it is smaller than the sum of its proper divisors (299633712).

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

172449168 is a wasteful number, since it uses less digits than its factorization.

172449168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296 (or 1290 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 172449168 is about 13131.9902528139. The cubic root of 172449168 is about 556.6134560555.

The spelling of 172449168 in words is "one hundred seventy-two million, four hundred forty-nine thousand, one hundred sixty-eight".