3938823912 has 32 divisors (see below), whose sum is σ = 9861645600. Its totient is φ = 1310996544.

The previous prime is 3938823907. The next prime is 3938823913. The reversal of 3938823912 is 2193288393.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3938823913) 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, 104962 + ... + 137457.

It is an arithmetic number, because the mean of its divisors is an integer number (308176425).

Almost surely, 2^3938823912 is an apocalyptic number.

It is an amenable number.

3938823912 is an abundant number, since it is smaller than the sum of its proper divisors (5922821688).

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

3938823912 is a wasteful number, since it uses less digits than its factorization.

3938823912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243105 (or 243101 counting only the distinct ones).

The product of its digits is 559872, while the sum is 48.

The square root of 3938823912 is about 62760.0502867867. The cubic root of 3938823912 is about 1579.2668595669.

The spelling of 3938823912 in words is "three billion, nine hundred thirty-eight million, eight hundred twenty-three thousand, nine hundred twelve".