3938118128 has 40 divisors (see below), whose sum is σ = 8736985440. Its totient is φ = 1684500480.

The previous prime is 3938118103. The next prime is 3938118143. The reversal of 3938118128 is 8218118393.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 24608 + ... + 92096.

It is an arithmetic number, because the mean of its divisors is an integer number (218424636).

Almost surely, 2^3938118128 is an apocalyptic number.

It is an amenable number.

3938118128 is an abundant number, since it is smaller than the sum of its proper divisors (4798867312).

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

3938118128 is a wasteful number, since it uses less digits than its factorization.

3938118128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68025 (or 68019 counting only the distinct ones).

The product of its digits is 82944, while the sum is 44.

The square root of 3938118128 is about 62754.4271585679. The cubic root of 3938118128 is about 1579.1725261747.

The spelling of 3938118128 in words is "three billion, nine hundred thirty-eight million, one hundred eighteen thousand, one hundred twenty-eight".