442572163 has 16 divisors (see below), whose sum is σ = 505128960. Its totient is φ = 384155200.

The previous prime is 442572113. The next prime is 442572173. The reversal of 442572163 is 361275244.

It is not a de Polignac number, because 442572163 - 2¹⁷ = 442441091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442572113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10758 + ... + 31636.

It is an arithmetic number, because the mean of its divisors is an integer number (31570560).

Almost surely, 2^442572163 is an apocalyptic number.

442572163 is a deficient number, since it is larger than the sum of its proper divisors (62556797).

442572163 is a wasteful number, since it uses less digits than its factorization.

442572163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20978.

The product of its digits is 40320, while the sum is 34.

The square root of 442572163 is about 21037.3991500851. The cubic root of 442572163 is about 762.0697064478.

The spelling of 442572163 in words is "four hundred forty-two million, five hundred seventy-two thousand, one hundred sixty-three".