3938856830 has 16 divisors (see below), whose sum is σ = 7281563040. Its totient is φ = 1532960352.

The previous prime is 3938856829. The next prime is 3938856833. The reversal of 3938856830 is 386588393.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3938856833) 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, 5322410 + ... + 5323149.

It is an arithmetic number, because the mean of its divisors is an integer number (455097690).

Almost surely, 2^3938856830 is an apocalyptic number.

3938856830 is a deficient number, since it is larger than the sum of its proper divisors (3342706210).

3938856830 is a wasteful number, since it uses less digits than its factorization.

3938856830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10645603.

The product of its (nonzero) digits is 3732480, while the sum is 53.

The square root of 3938856830 is about 62760.3125390561. The cubic root of 3938856830 is about 1579.2712590325.

The spelling of 3938856830 in words is "three billion, nine hundred thirty-eight million, eight hundred fifty-six thousand, eight hundred thirty".