320240260740 has 96 divisors (see below), whose sum is σ = 913354041600. Its totient is φ = 83814796800.

The previous prime is 320240260727. The next prime is 320240260757. The reversal of 320240260740 is 47062042023.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 320240260698 and 320240260707.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1592361 + ... + 1782159.

It is an arithmetic number, because the mean of its divisors is an integer number (9514104600).

Almost surely, 2^320240260740 is an apocalyptic number.

320240260740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320240260740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456677020800).

320240260740 is an abundant number, since it is smaller than the sum of its proper divisors (593113780860).

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

320240260740 is a wasteful number, since it uses less digits than its factorization.

320240260740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190333 (or 190331 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 30.

The spelling of 320240260740 in words is "three hundred twenty billion, two hundred forty million, two hundred sixty thousand, seven hundred forty".