320423455404 has 36 divisors (see below), whose sum is σ = 872263852096. Its totient is φ = 98591832288.

The previous prime is 320423455399. The next prime is 320423455421. The reversal of 320423455404 is 404554324023.

320423455404 is a `hidden beast` number, since 3 + 204 + 2 + 3 + 45 + 5 + 404 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 342332284 + ... + 342333219.

Almost surely, 2^320423455404 is an apocalyptic number.

It is an amenable number.

320423455404 is an abundant number, since it is smaller than the sum of its proper divisors (551840396692).

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

320423455404 is a wasteful number, since it uses less digits than its factorization.

320423455404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684665526 (or 684665521 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 36.

Adding to 320423455404 its reverse (404554324023), we get a palindrome (724977779427).

The spelling of 320423455404 in words is "three hundred twenty billion, four hundred twenty-three million, four hundred fifty-five thousand, four hundred four".