3935400939 has 6 divisors (see below), whose sum is σ = 5684468036. Its totient is φ = 2623600620.

The previous prime is 3935400913. The next prime is 3935400967. The reversal of 3935400939 is 9390045393.

It is not a de Polignac number, because 3935400939 - 2⁷ = 3935400811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3935400894 and 3935400903.

It is not an unprimeable number, because it can be changed into a prime (3935400439) 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 5 ways as a sum of consecutive naturals, for example, 218633377 + ... + 218633394.

Almost surely, 2^3935400939 is an apocalyptic number.

3935400939 is a deficient number, since it is larger than the sum of its proper divisors (1749067097).

3935400939 is a wasteful number, since it uses less digits than its factorization.

3935400939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437266777 (or 437266774 counting only the distinct ones).

The product of its (nonzero) digits is 393660, while the sum is 45.

The square root of 3935400939 is about 62732.7740419631. The cubic root of 3935400939 is about 1578.8092479688.

The spelling of 3935400939 in words is "three billion, nine hundred thirty-five million, four hundred thousand, nine hundred thirty-nine".