7320385980 has 144 divisors (see below), whose sum is σ = 23834157984. Its totient is φ = 1812049920.

The previous prime is 7320385939. The next prime is 7320385993. The reversal of 7320385980 is 895830237.

7320385980 is a `hidden beast` number, since 7 + 3 + 20 + 38 + 598 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 206995 + ... + 239765.

It is an arithmetic number, because the mean of its divisors is an integer number (165514986).

Almost surely, 2^7320385980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7320385980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11917078992).

7320385980 is an abundant number, since it is smaller than the sum of its proper divisors (16513772004).

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

7320385980 is a wasteful number, since it uses less digits than its factorization.

7320385980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32876 (or 32871 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 7320385980 is about 85559.2542043232. The cubic root of 7320385980 is about 1941.6815034775.

The spelling of 7320385980 in words is "seven billion, three hundred twenty million, three hundred eighty-five thousand, nine hundred eighty".