442597 has 4 divisors (see below), whose sum is σ = 447660. Its totient is φ = 437536.

The previous prime is 442579. The next prime is 442601. The reversal of 442597 is 795244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 181476 + 261121 = 426^2 + 511^2 .

It is a cyclic number.

It is not a de Polignac number, because 442597 - 2⁷ = 442469 is a prime.

It is an Ulam number.

It is a Duffinian number.

442597 is a lucky number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442517) 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, 2398 + ... + 2575.

It is an arithmetic number, because the mean of its divisors is an integer number (111915).

2⁴⁴²⁵⁹⁷ is an apocalyptic number.

It is an amenable number.

442597 is a deficient number, since it is larger than the sum of its proper divisors (5063).

442597 is an equidigital number, since it uses as much as digits as its factorization.

442597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5062.

The product of its digits is 10080, while the sum is 31.

The square root of 442597 is about 665.2796404520. The cubic root of 442597 is about 76.2083961879.

The spelling of 442597 in words is "four hundred forty-two thousand, five hundred ninety-seven".