442718 has 8 divisors (see below), whose sum is σ = 680400. Its totient is φ = 215920.

The previous prime is 442703. The next prime is 442721. The reversal of 442718 is 817244.

It is a sphenic number, since it is the product of 3 distinct primes.

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 442718.

It is an unprimeable number.

442718 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2618 + ... + 2781.

It is an arithmetic number, because the mean of its divisors is an integer number (85050).

2⁴⁴²⁷¹⁸ is an apocalyptic number.

442718 is a deficient number, since it is larger than the sum of its proper divisors (237682).

442718 is a wasteful number, since it uses less digits than its factorization.

442718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5442.

The product of its digits is 1792, while the sum is 26.

The square root of 442718 is about 665.3705734401. The cubic root of 442718 is about 76.2153403348.

The spelling of 442718 in words is "four hundred forty-two thousand, seven hundred eighteen".