320330342301040 has 40 divisors (see below), whose sum is σ = 744772980362400. Its totient is φ = 128131287972096.

The previous prime is 320330342300831. The next prime is 320330342301173. The reversal of 320330342301040 is 40103243033023.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×320330342301040² (a number of 30 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 7 ways as a sum of consecutive naturals, for example, 1044999 + ... + 25332838.

It is an arithmetic number, because the mean of its divisors is an integer number (18619324509060).

Almost surely, 2^{320330342301040} is an apocalyptic number.

It is an amenable number.

320330342301040 is an abundant number, since it is smaller than the sum of its proper divisors (424442638061360).

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

320330342301040 is a wasteful number, since it uses less digits than its factorization.

320330342301040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26529649 (or 26529643 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 320330342301040 its reverse (40103243033023), we get a palindrome (360433585334063).

The spelling of 320330342301040 in words is "three hundred twenty trillion, three hundred thirty billion, three hundred forty-two million, three hundred one thousand, forty".