442245164 has 12 divisors (see below), whose sum is σ = 794846304. Its totient is φ = 215146224.

The previous prime is 442245161. The next prime is 442245203. The reversal of 442245164 is 461542244.

It is a self number, because there is not a number n which added to its sum of digits gives 442245164.

It is not an unprimeable number, because it can be changed into a prime (442245161) 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 3 ways as a sum of consecutive naturals, for example, 1493924 + ... + 1494219.

It is an arithmetic number, because the mean of its divisors is an integer number (66237192).

Almost surely, 2^442245164 is an apocalyptic number.

It is an amenable number.

442245164 is a deficient number, since it is larger than the sum of its proper divisors (352601140).

442245164 is a wasteful number, since it uses less digits than its factorization.

442245164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2988184 (or 2988182 counting only the distinct ones).

The product of its digits is 30720, while the sum is 32.

The square root of 442245164 is about 21029.6258644799. The cubic root of 442245164 is about 761.8819725205.

The spelling of 442245164 in words is "four hundred forty-two million, two hundred forty-five thousand, one hundred sixty-four".