424443 has 4 divisors (see below), whose sum is σ = 565928. Its totient is φ = 282960.

The previous prime is 424433. The next prime is 424451. The reversal of 424443 is 344424.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 424443 - 2⁸ = 424187 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424423) 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, 70738 + ... + 70743.

It is an arithmetic number, because the mean of its divisors is an integer number (141482).

2⁴²⁴⁴⁴³ is an apocalyptic number.

424443 is a deficient number, since it is larger than the sum of its proper divisors (141485).

424443 is a wasteful number, since it uses less digits than its factorization.

424443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141484.

The product of its digits is 1536, while the sum is 21.

The square root of 424443 is about 651.4929009590. The cubic root of 424443 is about 75.1518700434.

Adding to 424443 its reverse (344424), we get a palindrome (768867).

The spelling of 424443 in words is "four hundred twenty-four thousand, four hundred forty-three", and thus it is an iban number.