442330424 has 16 divisors (see below), whose sum is σ = 829611720. Its totient is φ = 221100640.

The previous prime is 442330391. The next prime is 442330481. The reversal of 442330424 is 424033244.

It is a junction number, because it is equal to n+sod(n) for n = 442330393 and 442330402.

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, 33842 + ... + 45054.

Almost surely, 2^442330424 is an apocalyptic number.

It is an amenable number.

442330424 is a deficient number, since it is larger than the sum of its proper divisors (387281296).

442330424 is a wasteful number, since it uses less digits than its factorization.

442330424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16150 (or 16146 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 442330424 is about 21031.6529069876. The cubic root of 442330424 is about 761.9309301940.

Adding to 442330424 its reverse (424033244), we get a palindrome (866363668).

The spelling of 442330424 in words is "four hundred forty-two million, three hundred thirty thousand, four hundred twenty-four".