3940591275 has 48 divisors (see below), whose sum is σ = 7328484320. Its totient is φ = 2101619520.

The previous prime is 3940591271. The next prime is 3940591283. The reversal of 3940591275 is 5721950493.

It is a happy number.

3940591275 is a `hidden beast` number, since 39 + 4 + 0 + 591 + 27 + 5 = 666.

It is not a de Polignac number, because 3940591275 - 2² = 3940591271 is a prime.

It is a super-2 number, since 2×3940591275² = 31056519193212251250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 3940591275.

It is not an unprimeable number, because it can be changed into a prime (3940591271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18639 + ... + 90711.

Almost surely, 2^3940591275 is an apocalyptic number.

3940591275 is a deficient number, since it is larger than the sum of its proper divisors (3387893045).

3940591275 is an frugal number, since it uses more digits than its factorization.

3940591275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72104 (or 72081 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 3940591275 is about 62774.1290262159. The cubic root of 3940591275 is about 1579.5030316254.

The spelling of 3940591275 in words is "three billion, nine hundred forty million, five hundred ninety-one thousand, two hundred seventy-five".