9938660620 has 24 divisors (see below), whose sum is σ = 23852785824. Its totient is φ = 3407540736.

The previous prime is 9938660603. The next prime is 9938660621. The reversal of 9938660620 is 260668399.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (9938660621) 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, 35495077 + ... + 35495356.

It is an arithmetic number, because the mean of its divisors is an integer number (993866076).

Almost surely, 2^9938660620 is an apocalyptic number.

It is an amenable number.

9938660620 is an abundant number, since it is smaller than the sum of its proper divisors (13914125204).

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

9938660620 is a wasteful number, since it uses less digits than its factorization.

9938660620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70990449 (or 70990447 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 49.

The square root of 9938660620 is about 99692.8313370625. The cubic root of 9938660620 is about 2150.0205961611.

The spelling of 9938660620 in words is "nine billion, nine hundred thirty-eight million, six hundred sixty thousand, six hundred twenty".