7388639660 has 24 divisors (see below), whose sum is σ = 15531502896. Its totient is φ = 2952530240.

The previous prime is 7388639639. The next prime is 7388639707. The reversal of 7388639660 is 669368837.

It is a junction number, because it is equal to n+sod(n) for n = 7388639596 and 7388639605.

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 7 ways as a sum of consecutive naturals, for example, 162086 + ... + 202605.

It is an arithmetic number, because the mean of its divisors is an integer number (647145954).

Almost surely, 2^7388639660 is an apocalyptic number.

It is an amenable number.

7388639660 is an abundant number, since it is smaller than the sum of its proper divisors (8142863236).

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

7388639660 is a wasteful number, since it uses less digits than its factorization.

7388639660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365713 (or 365711 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 56.

The square root of 7388639660 is about 85957.1966736934. The cubic root of 7388639660 is about 1947.6974496638.

The spelling of 7388639660 in words is "seven billion, three hundred eighty-eight million, six hundred thirty-nine thousand, six hundred sixty".