442142344 has 32 divisors (see below), whose sum is σ = 948168000. Its totient is φ = 189345600.

The previous prime is 442142333. The next prime is 442142357. The reversal of 442142344 is 443241244.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 107119 + ... + 111169.

It is an arithmetic number, because the mean of its divisors is an integer number (29630250).

Almost surely, 2^442142344 is an apocalyptic number.

It is an amenable number.

442142344 is an abundant number, since it is smaller than the sum of its proper divisors (506025656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442142344 is a wasteful number, since it uses less digits than its factorization.

442142344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6013 (or 6009 counting only the distinct ones).

The product of its digits is 12288, while the sum is 28.

The square root of 442142344 is about 21027.1810759312. The cubic root of 442142344 is about 761.8229232400.

Adding to 442142344 its reverse (443241244), we get a palindrome (885383588).

The spelling of 442142344 in words is "four hundred forty-two million, one hundred forty-two thousand, three hundred forty-four".