442867 has 8 divisors (see below), whose sum is σ = 475200. Its totient is φ = 411264.

The previous prime is 442861. The next prime is 442879. The reversal of 442867 is 768244.

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

It is a de Polignac number, because none of the positive numbers 2^k-442867 is a prime.

It is a super-2 number, since 2×442867² = 392262359378, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 3 and base 9.

It is not an unprimeable number, because it can be changed into a prime (442861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1734 + ... + 1972.

It is an arithmetic number, because the mean of its divisors is an integer number (59400).

2⁴⁴²⁸⁶⁷ is an apocalyptic number.

442867 is a deficient number, since it is larger than the sum of its proper divisors (32333).

442867 is a wasteful number, since it uses less digits than its factorization.

442867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365.

The product of its digits is 10752, while the sum is 31.

The square root of 442867 is about 665.4825317016. The cubic root of 442867 is about 76.2238896536.

The spelling of 442867 in words is "four hundred forty-two thousand, eight hundred sixty-seven".