442544234 has 32 divisors (see below), whose sum is σ = 752328000. Its totient is φ = 193392640.

The previous prime is 442544233. The next prime is 442544239. The reversal of 442544234 is 432445244.

It is a self number, because there is not a number n which added to its sum of digits gives 442544234.

It is not an unprimeable number, because it can be changed into a prime (442544231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162617 + ... + 165315.

It is an arithmetic number, because the mean of its divisors is an integer number (23510250).

Almost surely, 2^442544234 is an apocalyptic number.

442544234 is a deficient number, since it is larger than the sum of its proper divisors (309783766).

442544234 is a wasteful number, since it uses less digits than its factorization.

442544234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998.

The product of its digits is 61440, while the sum is 32.

The square root of 442544234 is about 21036.7353455806. The cubic root of 442544234 is about 762.0536756967.

Adding to 442544234 its reverse (432445244), we get a palindrome (874989478).

The spelling of 442544234 in words is "four hundred forty-two million, five hundred forty-four thousand, two hundred thirty-four".