3938956916 has 12 divisors (see below), whose sum is σ = 7298655588. Its totient is φ = 1853626752.

The previous prime is 3938956909. The next prime is 3938956919. The reversal of 3938956916 is 6196598393.

It can be written as a sum of positive squares in 2 ways, for example, as 3516490000 + 422466916 = 59300^2 + 20554^2 .

It is a super-2 number, since 2×3938956916² = 31030763172208462112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3938956919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28962851 + ... + 28962986.

It is an arithmetic number, because the mean of its divisors is an integer number (608221299).

Almost surely, 2^3938956916 is an apocalyptic number.

It is an amenable number.

3938956916 is a deficient number, since it is larger than the sum of its proper divisors (3359698672).

3938956916 is a wasteful number, since it uses less digits than its factorization.

3938956916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57925858 (or 57925856 counting only the distinct ones).

The product of its digits is 9447840, while the sum is 59.

The square root of 3938956916 is about 62761.1099009570. The cubic root of 3938956916 is about 1579.2846352998.

The spelling of 3938956916 in words is "three billion, nine hundred thirty-eight million, nine hundred fifty-six thousand, nine hundred sixteen".