442886 has 8 divisors (see below), whose sum is σ = 667920. Its totient is φ = 220248.

The previous prime is 442879. The next prime is 442903. The reversal of 442886 is 688244.

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

It is a super-2 number, since 2×442886² = 392296017992, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4⁷ + 4⁹ + 8³ + 2¹⁷ + 8⁵ + 6 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26 + ... + 941.

It is an arithmetic number, because the mean of its divisors is an integer number (83490).

2⁴⁴²⁸⁸⁶ is an apocalyptic number.

442886 is a deficient number, since it is larger than the sum of its proper divisors (225034).

442886 is a wasteful number, since it uses less digits than its factorization.

442886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198.

The product of its digits is 12288, while the sum is 32.

The square root of 442886 is about 665.4968069044. The cubic root of 442886 is about 76.2249796973.

The spelling of 442886 in words is "four hundred forty-two thousand, eight hundred eighty-six".