442530142 has 8 divisors (see below), whose sum is σ = 663913656. Its totient is φ = 221225592.

The previous prime is 442530133. The next prime is 442530191. The reversal of 442530142 is 241035244.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2833 + ... + 29884.

It is an arithmetic number, because the mean of its divisors is an integer number (82989207).

Almost surely, 2^442530142 is an apocalyptic number.

442530142 is a deficient number, since it is larger than the sum of its proper divisors (221383514).

442530142 is a wasteful number, since it uses less digits than its factorization.

442530142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39482.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 442530142 is about 21036.4004050123. The cubic root of 442530142 is about 762.0455868824.

Adding to 442530142 its reverse (241035244), we get a palindrome (683565386).

The spelling of 442530142 in words is "four hundred forty-two million, five hundred thirty thousand, one hundred forty-two".