172444 has 12 divisors (see below), whose sum is σ = 317800. Its totient is φ = 81648.

The previous prime is 172441. The next prime is 172489. The reversal of 172444 is 444271.

172444 is a modest number, since divided by 444 gives 172 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172441) 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, 1059 + ... + 1210.

2¹⁷²⁴⁴⁴ is an apocalyptic number.

It is an amenable number.

172444 is a deficient number, since it is larger than the sum of its proper divisors (145356).

172444 is a wasteful number, since it uses less digits than its factorization.

172444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292 (or 2290 counting only the distinct ones).

The product of its digits is 896, while the sum is 22.

The square root of 172444 is about 415.2637715958. The cubic root of 172444 is about 55.6607895756.

It can be divided in two parts, 172 and 444, that added together give a palindrome (616).

The spelling of 172444 in words is "one hundred seventy-two thousand, four hundred forty-four", and thus it is an iban number.