442814 has 16 divisors (see below), whose sum is σ = 718080. Its totient is φ = 204120.

The previous prime is 442807. The next prime is 442817. The reversal of 442814 is 418244.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 442814.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 442814.

It is not an unprimeable number, because it can be changed into a prime (442817) 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, 1499 + ... + 1769.

It is an arithmetic number, because the mean of its divisors is an integer number (44880).

2⁴⁴²⁸¹⁴ is an apocalyptic number.

442814 is a deficient number, since it is larger than the sum of its proper divisors (275266).

442814 is a wasteful number, since it uses less digits than its factorization.

442814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335.

The product of its digits is 1024, while the sum is 23.

The square root of 442814 is about 665.4427097805. The cubic root of 442814 is about 76.2208488405.

The spelling of 442814 in words is "four hundred forty-two thousand, eight hundred fourteen".