172442446 has 8 divisors (see below), whose sum is σ = 282178584. Its totient is φ = 78382920.

The previous prime is 172442411. The next prime is 172442447. The reversal of 172442446 is 644244271.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172442447) by changing a digit.

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, 3919125 + ... + 3919168.

It is an arithmetic number, because the mean of its divisors is an integer number (35272323).

Almost surely, 2^172442446 is an apocalyptic number.

172442446 is a deficient number, since it is larger than the sum of its proper divisors (109736138).

172442446 is a wasteful number, since it uses less digits than its factorization.

172442446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7838306.

The product of its digits is 43008, while the sum is 34.

The square root of 172442446 is about 13131.7343104405. The cubic root of 172442446 is about 556.6062237711.

The spelling of 172442446 in words is "one hundred seventy-two million, four hundred forty-two thousand, four hundred forty-six".