9938228399 has 12 divisors (see below), whose sum is σ = 11300525880. Its totient is φ = 8723206800.

The previous prime is 9938228383. The next prime is 9938228431.

It is a happy number.

9938228399 is nontrivially palindromic in base 10.

9938228399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9938228399 - 2⁴ = 9938228383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9938221399) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1412597 + ... + 1419614.

It is an arithmetic number, because the mean of its divisors is an integer number (941710490).

Almost surely, 2^9938228399 is an apocalyptic number.

9938228399 is a deficient number, since it is larger than the sum of its proper divisors (1362297481).

9938228399 is a wasteful number, since it uses less digits than its factorization.

9938228399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2832262 (or 2832251 counting only the distinct ones).

The product of its digits is 15116544, while the sum is 62.

The square root of 9938228399 is about 99690.6635498029. The cubic root of 9938228399 is about 2149.9894283958.

The spelling of 9938228399 in words is "nine billion, nine hundred thirty-eight million, two hundred twenty-eight thousand, three hundred ninety-nine".