442385 has 8 divisors (see below), whose sum is σ = 536640. Its totient is φ = 350064.

The previous prime is 442367. The next prime is 442397. The reversal of 442385 is 583244.

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

It is a cyclic number.

It is not a de Polignac number, because 442385 - 2¹⁰ = 441361 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86 + ... + 944.

It is an arithmetic number, because the mean of its divisors is an integer number (67080).

2⁴⁴²³⁸⁵ is an apocalyptic number.

It is an amenable number.

442385 is a deficient number, since it is larger than the sum of its proper divisors (94255).

442385 is a wasteful number, since it uses less digits than its factorization.

442385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967.

The product of its digits is 3840, while the sum is 26.

The square root of 442385 is about 665.1202898724. The cubic root of 442385 is about 76.1962265315.

The spelling of 442385 in words is "four hundred forty-two thousand, three hundred eighty-five".