172332444 has 12 divisors (see below), whose sum is σ = 402109064. Its totient is φ = 57444144.

The previous prime is 172332439. The next prime is 172332467. The reversal of 172332444 is 444233271.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 7180507 + ... + 7180530.

Almost surely, 2^172332444 is an apocalyptic number.

It is an amenable number.

172332444 is an abundant number, since it is smaller than the sum of its proper divisors (229776620).

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

172332444 is a wasteful number, since it uses less digits than its factorization.

172332444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14361044 (or 14361042 counting only the distinct ones).

The product of its digits is 16128, while the sum is 30.

The square root of 172332444 is about 13127.5452389241. The cubic root of 172332444 is about 556.4878445223.

The spelling of 172332444 in words is "one hundred seventy-two million, three hundred thirty-two thousand, four hundred forty-four".