320320003444 has 48 divisors (see below), whose sum is σ = 647212954752. Its totient is φ = 135873839232.

The previous prime is 320320003439. The next prime is 320320003513. The reversal of 320320003444 is 444300023023.

It is a super-2 number, since 2×320320003444² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3298674 + ... + 3394390.

It is an arithmetic number, because the mean of its divisors is an integer number (13483603224).

Almost surely, 2^320320003444 is an apocalyptic number.

It is an amenable number.

320320003444 is an abundant number, since it is smaller than the sum of its proper divisors (326892951308).

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

320320003444 is a wasteful number, since it uses less digits than its factorization.

320320003444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96952 (or 96950 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 320320003444 its reverse (444300023023), we get a palindrome (764620026467).

The spelling of 320320003444 in words is "three hundred twenty billion, three hundred twenty million, three thousand, four hundred forty-four".