423444044 has 12 divisors (see below), whose sum is σ = 742035000. Its totient is φ = 211434048.

The previous prime is 423444001. The next prime is 423444061. The reversal of 423444044 is 440444324.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 423443998 and 423444016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68669 + ... + 74580.

It is an arithmetic number, because the mean of its divisors is an integer number (61836250).

Almost surely, 2^423444044 is an apocalyptic number.

It is an amenable number.

423444044 is a deficient number, since it is larger than the sum of its proper divisors (318590956).

423444044 is a wasteful number, since it uses less digits than its factorization.

423444044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143992 (or 143990 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 29.

The square root of 423444044 is about 20577.7560487046. The cubic root of 423444044 is about 750.9286535141.

Adding to 423444044 its reverse (440444324), we get a palindrome (863888368).

The spelling of 423444044 in words is "four hundred twenty-three million, four hundred forty-four thousand, forty-four".