442015 has 16 divisors (see below), whose sum is σ = 618048. Its totient is φ = 297216.

The previous prime is 442009. The next prime is 442019. The reversal of 442015 is 510244.

It is a cyclic number.

It is not a de Polignac number, because 442015 - 2³ = 442007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2469 + ... + 2641.

It is an arithmetic number, because the mean of its divisors is an integer number (38628).

2⁴⁴²⁰¹⁵ is an apocalyptic number.

442015 is a deficient number, since it is larger than the sum of its proper divisors (176033).

442015 is a wasteful number, since it uses less digits than its factorization.

442015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 442015 is about 664.8420865138. The cubic root of 442015 is about 76.1749777193.

Adding to 442015 its reverse (510244), we get a palindrome (952259).

The spelling of 442015 in words is "four hundred forty-two thousand, fifteen".