442711 has 4 divisors (see below), whose sum is σ = 457024. Its totient is φ = 428400.

The previous prime is 442703. The next prime is 442721. The reversal of 442711 is 117244.

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

It is a cyclic number.

It is not a de Polignac number, because 442711 - 2³ = 442703 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442721) 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, 7110 + ... + 7171.

It is an arithmetic number, because the mean of its divisors is an integer number (114256).

2⁴⁴²⁷¹¹ is an apocalyptic number.

442711 is a deficient number, since it is larger than the sum of its proper divisors (14313).

442711 is a wasteful number, since it uses less digits than its factorization.

442711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14312.

The product of its digits is 224, while the sum is 19.

The square root of 442711 is about 665.3653131927. The cubic root of 442711 is about 76.2149386418.

Adding to 442711 its reverse (117244), we get a palindrome (559955).

The spelling of 442711 in words is "four hundred forty-two thousand, seven hundred eleven", and thus it is an iban number.