320102544040 has 64 divisors (see below), whose sum is σ = 750505078800. Its totient is φ = 122723371008.

The previous prime is 320102544007. The next prime is 320102544059. The reversal of 320102544040 is 40445201023.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 265478440516 + 54624103524 = 515246^2 + 233718^2 .

It is a junction number, because it is equal to n+sod(n) for n = 320102543996 and 320102544014.

It is an unprimeable number.

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, 848199 + ... + 1166038.

Almost surely, 2^320102544040 is an apocalyptic number.

It is an amenable number.

320102544040 is an abundant number, since it is smaller than the sum of its proper divisors (430402534760).

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

320102544040 is a wasteful number, since it uses less digits than its factorization.

320102544040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014414 (or 2014410 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 320102544040 its reverse (40445201023), we get a palindrome (360547745063).

The spelling of 320102544040 in words is "three hundred twenty billion, one hundred two million, five hundred forty-four thousand, forty".