3938326820 has 24 divisors (see below), whose sum is σ = 8273664000. Its totient is φ = 1574725472.

The previous prime is 3938326801. The next prime is 3938326829. The reversal of 3938326820 is 286238393.

It is a happy number.

3938326820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3938326820² = 31020836282262624800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3938326829) 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, 17501 + ... + 90459.

It is an arithmetic number, because the mean of its divisors is an integer number (344736000).

Almost surely, 2^3938326820 is an apocalyptic number.

It is an amenable number.

3938326820 is an abundant number, since it is smaller than the sum of its proper divisors (4335337180).

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

3938326820 is a wasteful number, since it uses less digits than its factorization.

3938326820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75667 (or 75665 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 44.

The square root of 3938326820 is about 62756.0899036898. The cubic root of 3938326820 is about 1579.2004206191.

The spelling of 3938326820 in words is "three billion, nine hundred thirty-eight million, three hundred twenty-six thousand, eight hundred twenty".