442973942 has 16 divisors (see below), whose sum is σ = 721996800. Its totient is φ = 203060520.

The previous prime is 442973941. The next prime is 442973969. The reversal of 442973942 is 249379244.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 442973893 and 442973902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442973941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186842 + ... + 189197.

It is an arithmetic number, because the mean of its divisors is an integer number (45124800).

Almost surely, 2^442973942 is an apocalyptic number.

442973942 is a deficient number, since it is larger than the sum of its proper divisors (279022858).

442973942 is a wasteful number, since it uses less digits than its factorization.

442973942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376091.

The product of its digits is 435456, while the sum is 44.

The square root of 442973942 is about 21046.9461442747. The cubic root of 442973942 is about 762.3002458739.

The spelling of 442973942 in words is "four hundred forty-two million, nine hundred seventy-three thousand, nine hundred forty-two".