423340044 has 24 divisors (see below), whose sum is σ = 1006432560. Its totient is φ = 138450624.

The previous prime is 423340039. The next prime is 423340081. The reversal of 423340044 is 440043324.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 423339996 and 423340023.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332179 + ... + 333450.

It is an arithmetic number, because the mean of its divisors is an integer number (41934690).

Almost surely, 2^423340044 is an apocalyptic number.

It is an amenable number.

423340044 is an abundant number, since it is smaller than the sum of its proper divisors (583092516).

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

423340044 is a wasteful number, since it uses less digits than its factorization.

423340044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665689 (or 665687 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 423340044 is about 20575.2288930160. The cubic root of 423340044 is about 750.8671711880.

Adding to 423340044 its reverse (440043324), we get a palindrome (863383368).

The spelling of 423340044 in words is "four hundred twenty-three million, three hundred forty thousand, forty-four".