3938355970 has 16 divisors (see below), whose sum is σ = 7090039800. Its totient is φ = 1575120384.

The previous prime is 3938355919. The next prime is 3938355973. The reversal of 3938355970 is 795538393.

3938355970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2099747329 + 1838608641 = 45823^2 + 42879^2 .

It is not an unprimeable number, because it can be changed into a prime (3938355973) 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, 59956 + ... + 107104.

Almost surely, 2^3938355970 is an apocalyptic number.

3938355970 is a deficient number, since it is larger than the sum of its proper divisors (3151683830).

3938355970 is a wasteful number, since it uses less digits than its factorization.

3938355970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55509.

The product of its (nonzero) digits is 3061800, while the sum is 52.

The square root of 3938355970 is about 62756.3221516366. The cubic root of 3938355970 is about 1579.2043168235.

The spelling of 3938355970 in words is "three billion, nine hundred thirty-eight million, three hundred fifty-five thousand, nine hundred seventy".