13400343413 has 4 divisors (see below), whose sum is σ = 13400576268. Its totient is φ = 13400110560.

The previous prime is 13400343361. The next prime is 13400343493. The reversal of 13400343413 is 31434300431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 7683924964 + 5716418449 = 87658^2 + 75607^2 .

It is a cyclic number.

It is not a de Polignac number, because 13400343413 - 2⁶ = 13400343349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400343493) 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, 39545 + ... + 168417.

It is an arithmetic number, because the mean of its divisors is an integer number (3350144067).

Almost surely, 2^13400343413 is an apocalyptic number.

It is an amenable number.

13400343413 is a deficient number, since it is larger than the sum of its proper divisors (232855).

13400343413 is a wasteful number, since it uses less digits than its factorization.

13400343413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232854.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 13400343413 its reverse (31434300431), we get a palindrome (44834643844).

The spelling of 13400343413 in words is "thirteen billion, four hundred million, three hundred forty-three thousand, four hundred thirteen".