4140664393 has 4 divisors (see below), whose sum is σ = 4141559700. Its totient is φ = 4139769088.

The previous prime is 4140664369. The next prime is 4140664453. The reversal of 4140664393 is 3934660414.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3614053689 + 526610704 = 60117^2 + 22948^2 .

It is a cyclic number.

It is not a de Polignac number, because 4140664393 - 2²¹ = 4138567241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4140664303) 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 3 ways as a sum of consecutive naturals, for example, 440680 + ... + 449977.

It is an arithmetic number, because the mean of its divisors is an integer number (1035389925).

Almost surely, 2^4140664393 is an apocalyptic number.

It is an amenable number.

4140664393 is a deficient number, since it is larger than the sum of its proper divisors (895307).

4140664393 is an equidigital number, since it uses as much as digits as its factorization.

4140664393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895306.

The product of its (nonzero) digits is 186624, while the sum is 40.

The square root of 4140664393 is about 64347.9944753525. The cubic root of 4140664393 is about 1605.7946645013.

The spelling of 4140664393 in words is "four billion, one hundred forty million, six hundred sixty-four thousand, three hundred ninety-three".