320423004244 has 12 divisors (see below), whose sum is σ = 640846008544. Its totient is φ = 137324144664.

The previous prime is 320423004193. The next prime is 320423004247. The reversal of 320423004244 is 442400324023.

It is a happy number.

320423004244 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 11443678723 = 320423004244 / (3 + 2 + 0 + 4 + 2 + 3 + 0 + 0 + 4 + 2 + 4 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320423004247) 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, 5721839334 + ... + 5721839389.

Almost surely, 2^320423004244 is an apocalyptic number.

It is an amenable number.

320423004244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

320423004244 is a wasteful number, since it uses less digits than its factorization.

320423004244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11443678734 (or 11443678732 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 320423004244 its reverse (442400324023), we get a palindrome (762823328267).

The spelling of 320423004244 in words is "three hundred twenty billion, four hundred twenty-three million, four thousand, two hundred forty-four".