320323416 has 64 divisors (see below), whose sum is σ = 927782400. Its totient is φ = 90263808.

The previous prime is 320323411. The next prime is 320323453. The reversal of 320323416 is 614323023.

320323416 = 344² + 345² + ... + 1000².

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320323411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 796 + ... + 25323.

It is an arithmetic number, because the mean of its divisors is an integer number (14496600).

Almost surely, 2^320323416 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 320323416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (463891200).

320323416 is an abundant number, since it is smaller than the sum of its proper divisors (607458984).

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

320323416 is a wasteful number, since it uses less digits than its factorization.

320323416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26208 (or 26204 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 320323416 is about 17897.5812891016. The cubic root of 320323416 is about 684.2207317427.

Adding to 320323416 its reverse (614323023), we get a palindrome (934646439).

The spelling of 320323416 in words is "three hundred twenty million, three hundred twenty-three thousand, four hundred sixteen".