442113332 has 12 divisors (see below), whose sum is σ = 792569316. Its totient is φ = 215664960.

The previous prime is 442113319. The next prime is 442113391. The reversal of 442113332 is 233311244.

It can be written as a sum of positive squares in 2 ways, for example, as 239506576 + 202606756 = 15476^2 + 14234^2 .

It is a junction number, because it is equal to n+sod(n) for n = 442113298 and 442113307.

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, 1347743 + ... + 1348070.

It is an arithmetic number, because the mean of its divisors is an integer number (66047443).

Almost surely, 2^442113332 is an apocalyptic number.

It is an amenable number.

442113332 is a deficient number, since it is larger than the sum of its proper divisors (350455984).

442113332 is a wasteful number, since it uses less digits than its factorization.

442113332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2695858 (or 2695856 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 442113332 is about 21026.4911956322. The cubic root of 442113332 is about 761.8062600618.

Adding to 442113332 its reverse (233311244), we get a palindrome (675424576).

The spelling of 442113332 in words is "four hundred forty-two million, one hundred thirteen thousand, three hundred thirty-two".