1344440213 has 4 divisors (see below), whose sum is σ = 1356338028. Its totient is φ = 1332542400.

The previous prime is 1344440191. The next prime is 1344440233. The reversal of 1344440213 is 3120444431.

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 274299844 + 1070140369 = 16562^2 + 32713^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344440213 - 2¹⁰ = 1344439189 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 (1344440233) 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, 5948738 + ... + 5948963.

It is an arithmetic number, because the mean of its divisors is an integer number (339084507).

Almost surely, 2^1344440213 is an apocalyptic number.

It is an amenable number.

1344440213 is a deficient number, since it is larger than the sum of its proper divisors (11897815).

1344440213 is a wasteful number, since it uses less digits than its factorization.

1344440213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11897814.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 1344440213 is about 36666.6089651061. The cubic root of 1344440213 is about 1103.6901449287.

Adding to 1344440213 its reverse (3120444431), we get a palindrome (4464884644).

The spelling of 1344440213 in words is "one billion, three hundred forty-four million, four hundred forty thousand, two hundred thirteen".