442633612 has 12 divisors (see below), whose sum is σ = 801319680. Its totient is φ = 213685136.

The previous prime is 442633591. The next prime is 442633619. The reversal of 442633612 is 216336244.

It is not an unprimeable number, because it can be changed into a prime (442633619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1907788 + ... + 1908019.

It is an arithmetic number, because the mean of its divisors is an integer number (66776640).

Almost surely, 2^442633612 is an apocalyptic number.

It is an amenable number.

442633612 is a deficient number, since it is larger than the sum of its proper divisors (358686068).

442633612 is a wasteful number, since it uses less digits than its factorization.

442633612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3815840 (or 3815838 counting only the distinct ones).

The product of its digits is 20736, while the sum is 31.

The square root of 442633612 is about 21038.8595698531. The cubic root of 442633612 is about 762.1049747107.

Adding to 442633612 its reverse (216336244), we get a palindrome (658969856).

The spelling of 442633612 in words is "four hundred forty-two million, six hundred thirty-three thousand, six hundred twelve".