3938212012 has 12 divisors (see below), whose sum is σ = 7876424080. Its totient is φ = 1687805136.

The previous prime is 3938211983. The next prime is 3938212013. The reversal of 3938212012 is 2102128393.

3938212012 is an admirable number.

It is a super-2 number, since 2×3938212012² = 31019027702922176288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3938212013) 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 3 ways as a sum of consecutive naturals, for example, 70325187 + ... + 70325242.

Almost surely, 2^3938212012 is an apocalyptic number.

It is an amenable number.

3938212012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3938212012 is a wasteful number, since it uses less digits than its factorization.

3938212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140650440 (or 140650438 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 3938212012 is about 62755.1751810159. The cubic root of 3938212012 is about 1579.1850751342.

The spelling of 3938212012 in words is "three billion, nine hundred thirty-eight million, two hundred twelve thousand, twelve".