1340334013 has 12 divisors (see below), whose sum is σ = 1370060020. Its totient is φ = 1311238656.

The previous prime is 1340333983. The next prime is 1340334031. The reversal of 1340334013 is 3104330431.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 5673924 + 1334660089 = 2382^2 + 36533^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1340334013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340332013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1890103 + ... + 1890811.

Almost surely, 2^1340334013 is an apocalyptic number.

It is an amenable number.

1340334013 is a deficient number, since it is larger than the sum of its proper divisors (29726007).

1340334013 is an frugal number, since it uses more digits than its factorization.

1340334013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488 (or 1435 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 1340334013 is about 36610.5724210917. The cubic root of 1340334013 is about 1102.5653659721.

Adding to 1340334013 its reverse (3104330431), we get a palindrome (4444664444).

The spelling of 1340334013 in words is "one billion, three hundred forty million, three hundred thirty-four thousand, thirteen".