320224404 has 48 divisors (see below), whose sum is σ = 792780800. Its totient is φ = 100318176.

The previous prime is 320224379. The next prime is 320224453. The reversal of 320224404 is 404422023.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 23427 + ... + 34485.

Almost surely, 2^320224404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320224404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396390400).

320224404 is an abundant number, since it is smaller than the sum of its proper divisors (472556396).

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

320224404 is a wasteful number, since it uses less digits than its factorization.

320224404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11212 (or 11210 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 320224404 is about 17894.8150032349. The cubic root of 320224404 is about 684.1502269123.

Adding to 320224404 its reverse (404422023), we get a palindrome (724646427).

The spelling of 320224404 in words is "three hundred twenty million, two hundred twenty-four thousand, four hundred four".