3930393128 has 32 divisors (see below), whose sum is σ = 7485004800. Its totient is φ = 1934435712.

The previous prime is 3930393121. The next prime is 3930393151. The reversal of 3930393128 is 8213930393.

It is not an unprimeable number, because it can be changed into a prime (3930393121) 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, 1438868 + ... + 1441596.

It is an arithmetic number, because the mean of its divisors is an integer number (233906400).

Almost surely, 2^3930393128 is an apocalyptic number.

It is an amenable number.

3930393128 is a deficient number, since it is larger than the sum of its proper divisors (3554611672).

3930393128 is a wasteful number, since it uses less digits than its factorization.

3930393128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5489 (or 5485 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 3930393128 is about 62692.8475027255. The cubic root of 3930393128 is about 1578.1392836758.

The spelling of 3930393128 in words is "three billion, nine hundred thirty million, three hundred ninety-three thousand, one hundred twenty-eight".