442892 has 12 divisors (see below), whose sum is σ = 779856. Its totient is φ = 220080.

The previous prime is 442879. The next prime is 442903. The reversal of 442892 is 298244.

It is an Ulam number.

It is a plaindrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 442892.

It is an unprimeable number.

442892 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 842 + ... + 1262.

It is an arithmetic number, because the mean of its divisors is an integer number (64988).

2⁴⁴²⁸⁹² is an apocalyptic number.

It is an amenable number.

442892 is a deficient number, since it is larger than the sum of its proper divisors (336964).

442892 is a wasteful number, since it uses less digits than its factorization.

442892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688 (or 686 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 442892 is about 665.5013147996. The cubic root of 442892 is about 76.2253239152.

The spelling of 442892 in words is "four hundred forty-two thousand, eight hundred ninety-two".