442946 has 16 divisors (see below), whose sum is σ = 786240. Its totient is φ = 183120.

The previous prime is 442919. The next prime is 442961. The reversal of 442946 is 649244.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an Ulam number.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 140 + ... + 951.

It is an arithmetic number, because the mean of its divisors is an integer number (49140).

2⁴⁴²⁹⁴⁶ is an apocalyptic number.

442946 is a deficient number, since it is larger than the sum of its proper divisors (343294).

442946 is a wasteful number, since it uses less digits than its factorization.

442946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129.

The product of its digits is 6912, while the sum is 29.

The square root of 442946 is about 665.5418844821. The cubic root of 442946 is about 76.2284217360.

The spelling of 442946 in words is "four hundred forty-two thousand, nine hundred forty-six".