423444612 has 12 divisors (see below), whose sum is σ = 988037456. Its totient is φ = 141148200.

The previous prime is 423444611. The next prime is 423444629. The reversal of 423444612 is 216444324.

It is a tau number, because it is divible by the number of its divisors (12).

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

It is a self number, because there is not a number n which added to its sum of digits gives 423444612.

It is not an unprimeable number, because it can be changed into a prime (423444611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17643514 + ... + 17643537.

Almost surely, 2^423444612 is an apocalyptic number.

It is an amenable number.

423444612 is an abundant number, since it is smaller than the sum of its proper divisors (564592844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423444612 is a wasteful number, since it uses less digits than its factorization.

423444612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35287058 (or 35287056 counting only the distinct ones).

The product of its digits is 18432, while the sum is 30.

The square root of 423444612 is about 20577.7698500105. The cubic root of 423444612 is about 750.9289892746.

Adding to 423444612 its reverse (216444324), we get a palindrome (639888936).

The spelling of 423444612 in words is "four hundred twenty-three million, four hundred forty-four thousand, six hundred twelve".