3938412316 has 18 divisors (see below), whose sum is σ = 6990698120. Its totient is φ = 1941460920.

The previous prime is 3938412311. The next prime is 3938412319. The reversal of 3938412316 is 6132148393.

It is a happy number.

It is a super-2 number, since 2×3938412316² = 31022183141640967712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3938412311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77496 + ... + 117823.

Almost surely, 2^3938412316 is an apocalyptic number.

It is an amenable number.

3938412316 is a deficient number, since it is larger than the sum of its proper divisors (3052285804).

3938412316 is a wasteful number, since it uses less digits than its factorization.

3938412316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195465 (or 195392 counting only the distinct ones).

The product of its digits is 93312, while the sum is 40.

The square root of 3938412316 is about 62756.7710769125. The cubic root of 3938412316 is about 1579.2118480051.

The spelling of 3938412316 in words is "three billion, nine hundred thirty-eight million, four hundred twelve thousand, three hundred sixteen".