3440445413 has 4 divisors (see below), whose sum is σ = 3446492460. Its totient is φ = 3434398368.

The previous prime is 3440445403. The next prime is 3440445419. The reversal of 3440445413 is 3145440443.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3145440443 = 19 ⋅165549497.

It can be written as a sum of positive squares in 2 ways, for example, as 814702849 + 2625742564 = 28543^2 + 51242^2 .

It is a cyclic number.

It is not a de Polignac number, because 3440445413 - 2¹⁰ = 3440444389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3440445413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3440445419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3022670 + ... + 3023807.

It is an arithmetic number, because the mean of its divisors is an integer number (861623115).

Almost surely, 2^3440445413 is an apocalyptic number.

It is an amenable number.

3440445413 is a deficient number, since it is larger than the sum of its proper divisors (6047047).

3440445413 is an equidigital number, since it uses as much as digits as its factorization.

3440445413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6047046.

The product of its (nonzero) digits is 46080, while the sum is 32.

The square root of 3440445413 is about 58655.3101858647. The cubic root of 3440445413 is about 1509.6336132838.

Adding to 3440445413 its reverse (3145440443), we get a palindrome (6585885856).

The spelling of 3440445413 in words is "three billion, four hundred forty million, four hundred forty-five thousand, four hundred thirteen".