442173 has 4 divisors (see below), whose sum is σ = 589568. Its totient is φ = 294780.

The previous prime is 442171. The next prime is 442177. The reversal of 442173 is 371244.

442173 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 442173 - 2¹ = 442171 is a prime.

It is a D-number.

It is a Duffinian number.

442173 is strictly pandigital in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442171) 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, 73693 + ... + 73698.

It is an arithmetic number, because the mean of its divisors is an integer number (147392).

2⁴⁴²¹⁷³ is an apocalyptic number.

It is an amenable number.

442173 is a deficient number, since it is larger than the sum of its proper divisors (147395).

442173 is a wasteful number, since it uses less digits than its factorization.

442173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147394.

The product of its digits is 672, while the sum is 21.

The square root of 442173 is about 664.9609011062. The cubic root of 442173 is about 76.1840529865.

It can be divided in two parts, 44217 and 3, that multiplied together give a cube (132651 = 51³).

The spelling of 442173 in words is "four hundred forty-two thousand, one hundred seventy-three", and thus it is an iban number.