3940392965 has 8 divisors (see below), whose sum is σ = 4729040280. Its totient is φ = 3151935232.

The previous prime is 3940392949. The next prime is 3940392983. The reversal of 3940392965 is 5692930493.

It can be written as a sum of positive squares in 4 ways, for example, as 5841889 + 3934551076 = 2417^2 + 62726^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3940392965 - 2⁴ = 3940392949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3257 + ... + 88833.

It is an arithmetic number, because the mean of its divisors is an integer number (591130035).

Almost surely, 2^3940392965 is an apocalyptic number.

It is an amenable number.

3940392965 is a deficient number, since it is larger than the sum of its proper divisors (788647315).

3940392965 is an equidigital number, since it uses as much as digits as its factorization.

3940392965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94791.

The product of its (nonzero) digits is 1574640, while the sum is 50.

The square root of 3940392965 is about 62772.5494543594. The cubic root of 3940392965 is about 1579.4765350518.

The spelling of 3940392965 in words is "three billion, nine hundred forty million, three hundred ninety-two thousand, nine hundred sixty-five".