442706 has 8 divisors (see below), whose sum is σ = 724464. Its totient is φ = 201220.

The previous prime is 442703. The next prime is 442721. The reversal of 442706 is 607244.

442706 = 78² + 79² + ... + 121².

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

It is not an unprimeable number, because it can be changed into a prime (442703) 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, 10040 + ... + 10083.

It is an arithmetic number, because the mean of its divisors is an integer number (90558).

2⁴⁴²⁷⁰⁶ is an apocalyptic number.

442706 is a deficient number, since it is larger than the sum of its proper divisors (281758).

442706 is a wasteful number, since it uses less digits than its factorization.

442706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20136.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 442706 is about 665.3615558476. The cubic root of 442706 is about 76.2146517156.

The spelling of 442706 in words is "four hundred forty-two thousand, seven hundred six".