3935085640 has 32 divisors (see below), whose sum is σ = 9238898880. Its totient is φ = 1505597632.

The previous prime is 3935085631. The next prime is 3935085641. The reversal of 3935085640 is 465805393.

It is not an unprimeable number, because it can be changed into a prime (3935085641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2137714 + ... + 2139553.

It is an arithmetic number, because the mean of its divisors is an integer number (288715590).

Almost surely, 2^3935085640 is an apocalyptic number.

It is an amenable number.

3935085640 is an abundant number, since it is smaller than the sum of its proper divisors (5303813240).

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

3935085640 is a wasteful number, since it uses less digits than its factorization.

3935085640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4277301 (or 4277297 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 3935085640 is about 62730.2609591256. The cubic root of 3935085640 is about 1578.7670828222.

The spelling of 3935085640 in words is "three billion, nine hundred thirty-five million, eighty-five thousand, six hundred forty".