320435355040 has 48 divisors (see below), whose sum is σ = 757389981600. Its totient is φ = 128112943360.

The previous prime is 320435355007. The next prime is 320435355041. The reversal of 320435355040 is 40553534023.

It is a super-2 number, since 2×320435355040² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320435354987 and 320435355005.

It is not an unprimeable number, because it can be changed into a prime (320435355041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141226 + ... + 812905.

It is an arithmetic number, because the mean of its divisors is an integer number (15778957950).

Almost surely, 2^320435355040 is an apocalyptic number.

It is an amenable number.

320435355040 is an abundant number, since it is smaller than the sum of its proper divisors (436954626560).

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

320435355040 is a wasteful number, since it uses less digits than its factorization.

320435355040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956245 (or 956237 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 34.

Adding to 320435355040 its reverse (40553534023), we get a palindrome (360988889063).

The spelling of 320435355040 in words is "three hundred twenty billion, four hundred thirty-five million, three hundred fifty-five thousand, forty".