442530052 has 12 divisors (see below), whose sum is σ = 780340176. Its totient is φ = 219575720.

The previous prime is 442530041. The next prime is 442530061. The reversal of 442530052 is 250035244.

It is a junction number, because it is equal to n+sod(n) for n = 442529999 and 442530026.

It is an unprimeable number.

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, 421738 + ... + 422785.

It is an arithmetic number, because the mean of its divisors is an integer number (65028348).

Almost surely, 2^442530052 is an apocalyptic number.

It is an amenable number.

442530052 is a deficient number, since it is larger than the sum of its proper divisors (337810124).

442530052 is a wasteful number, since it uses less digits than its factorization.

442530052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844658 (or 844656 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 442530052 is about 21036.3982658629. The cubic root of 442530052 is about 762.0455352218.

Adding to 442530052 its reverse (250035244), we get a palindrome (692565296).

The spelling of 442530052 in words is "four hundred forty-two million, five hundred thirty thousand, fifty-two".