442286 has 8 divisors (see below), whose sum is σ = 714504. Its totient is φ = 204120.

The previous prime is 442283. The next prime is 442291. The reversal of 442286 is 682244.

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 17011 = 442286 / (4 + 4 + 2 + 2 + 8 + 6).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442283) 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, 8480 + ... + 8531.

It is an arithmetic number, because the mean of its divisors is an integer number (89313).

2⁴⁴²²⁸⁶ is an apocalyptic number.

442286 is a deficient number, since it is larger than the sum of its proper divisors (272218).

442286 is a wasteful number, since it uses less digits than its factorization.

442286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17026.

The product of its digits is 3072, while the sum is 26.

The square root of 442286 is about 665.0458630801. The cubic root of 442286 is about 76.1905421998.

The spelling of 442286 in words is "four hundred forty-two thousand, two hundred eighty-six".