442606 has 4 divisors (see below), whose sum is σ = 663912. Its totient is φ = 221302.

The previous prime is 442601. The next prime is 442609. The reversal of 442606 is 606244.

442606 is nontrivially palindromic in base 7.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110650 + ... + 110653.

It is an arithmetic number, because the mean of its divisors is an integer number (165978).

2⁴⁴²⁶⁰⁶ is an apocalyptic number.

442606 is a deficient number, since it is larger than the sum of its proper divisors (221306).

442606 is a wasteful number, since it uses less digits than its factorization.

442606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221305.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 442606 is about 665.2864044906. The cubic root of 442606 is about 76.2089127383.

The spelling of 442606 in words is "four hundred forty-two thousand, six hundred six".