442917 has 12 divisors (see below), whose sum is σ = 662220. Its totient is φ = 284928.

The previous prime is 442903. The next prime is 442919. The reversal of 442917 is 719244.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 349281 + 93636 = 591^2 + 306^2 .

It is not a de Polignac number, because 442917 - 2⁷ = 442789 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 442917.

It is not an unprimeable number, because it can be changed into a prime (442919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 588 + ... + 1109.

It is an arithmetic number, because the mean of its divisors is an integer number (55185).

2⁴⁴²⁹¹⁷ is an apocalyptic number.

It is an amenable number.

442917 is a deficient number, since it is larger than the sum of its proper divisors (219303).

442917 is a wasteful number, since it uses less digits than its factorization.

442917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732 (or 1729 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 442917 is about 665.5200973675. The cubic root of 442917 is about 76.2267581228.

The spelling of 442917 in words is "four hundred forty-two thousand, nine hundred seventeen".