444222424 has 8 divisors (see below), whose sum is σ = 832917060. Its totient is φ = 222111208.

The previous prime is 444222419. The next prime is 444222431. The reversal of 444222424 is 424222444.

It is a tau number, because it is divible by the number of its divisors (8).

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 = 444222392 and 444222401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27763894 + ... + 27763909.

Almost surely, 2^444222424 is an apocalyptic number.

It is an amenable number.

444222424 is a deficient number, since it is larger than the sum of its proper divisors (388694636).

444222424 is a wasteful number, since it uses less digits than its factorization.

444222424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55527809 (or 55527805 counting only the distinct ones).

The product of its digits is 16384, while the sum is 28.

The square root of 444222424 is about 21076.5847328261. The cubic root of 444222424 is about 763.0157322206.

Adding to 444222424 its reverse (424222444), we get a palindrome (868444868).

The spelling of 444222424 in words is "four hundred forty-four million, two hundred twenty-two thousand, four hundred twenty-four".