442573 has 2 divisors, whose sum is σ = 442574. Its totient is φ = 442572.

The previous prime is 442571. The next prime is 442577. The reversal of 442573 is 375244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 328329 + 114244 = 573^2 + 338^2 .

It is a cyclic number.

It is not a de Polignac number, because 442573 - 2¹ = 442571 is a prime.

Together with 442571, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (442571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221286 + 221287.

It is an arithmetic number, because the mean of its divisors is an integer number (221287).

2⁴⁴²⁵⁷³ is an apocalyptic number.

It is an amenable number.

442573 is a deficient number, since it is larger than the sum of its proper divisors (1).

442573 is an equidigital number, since it uses as much as digits as its factorization.

442573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 25.

The square root of 442573 is about 665.2616026797. The cubic root of 442573 is about 76.2070186861.

The spelling of 442573 in words is "four hundred forty-two thousand, five hundred seventy-three".