172338 has 8 divisors (see below), whose sum is σ = 344688. Its totient is φ = 57444.

The previous prime is 172331. The next prime is 172343. The reversal of 172338 is 833271.

It is a sphenic number, since it is the product of 3 distinct primes.

172338 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (172331) 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 3 ways as a sum of consecutive naturals, for example, 14356 + ... + 14367.

It is an arithmetic number, because the mean of its divisors is an integer number (43086).

2¹⁷²³³⁸ is an apocalyptic number.

172338 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

172338 is a wasteful number, since it uses less digits than its factorization.

172338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28728.

The product of its digits is 1008, while the sum is 24.

The square root of 172338 is about 415.1361222539. The cubic root of 172338 is about 55.6493824850.

The spelling of 172338 in words is "one hundred seventy-two thousand, three hundred thirty-eight".