442424 has 16 divisors (see below), whose sum is σ = 858600. Its totient is φ = 213472.

The previous prime is 442399. The next prime is 442439. The reversal of 442424 is 424244.

442424 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 442396 and 442405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722 + ... + 1185.

2⁴⁴²⁴²⁴ is an apocalyptic number.

It is an amenable number.

442424 is a deficient number, since it is larger than the sum of its proper divisors (416176).

442424 is a wasteful number, since it uses less digits than its factorization.

442424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942 (or 1938 counting only the distinct ones).

The product of its digits is 1024, while the sum is 20.

The square root of 442424 is about 665.1496072313. The cubic root of 442424 is about 76.1984655808.

Adding to 442424 its reverse (424244), we get a palindrome (866668).

The spelling of 442424 in words is "four hundred forty-two thousand, four hundred twenty-four", and thus it is an iban number.