7329320640 has 140 divisors (see below), whose sum is σ = 26071775136. Its totient is φ = 1954478592.

The previous prime is 7329320629. The next prime is 7329320681. The reversal of 7329320640 is 460239237.

It is a happy number.

7329320640 is a `hidden beast` number, since 7 + 3 + 2 + 9 + 3 + 2 + 0 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 7329320595 and 7329320604.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 115464 + ... + 167303.

Almost surely, 2^7329320640 is an apocalyptic number.

It is an amenable number.

7329320640 is an abundant number, since it is smaller than the sum of its proper divisors (18742454496).

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

7329320640 is a wasteful number, since it uses less digits than its factorization.

7329320640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282796 (or 282777 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 7329320640 is about 85611.4515704529. The cubic root of 7329320640 is about 1942.4711344677.

Adding to 7329320640 its reverse (460239237), we get a palindrome (7789559877).

The spelling of 7329320640 in words is "seven billion, three hundred twenty-nine million, three hundred twenty thousand, six hundred forty".