1344015405 has 12 divisors (see below), whose sum is σ = 2329626780. Its totient is φ = 716808192.

The previous prime is 1344015401. The next prime is 1344015443. The reversal of 1344015405 is 5045104431.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1069682436 + 274332969 = 32706^2 + 16563^2 .

It is not a de Polignac number, because 1344015405 - 2² = 1344015401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344015401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14933460 + ... + 14933549.

It is an arithmetic number, because the mean of its divisors is an integer number (194135565).

Almost surely, 2^1344015405 is an apocalyptic number.

1344015405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1344015405 is a deficient number, since it is larger than the sum of its proper divisors (985611375).

1344015405 is a wasteful number, since it uses less digits than its factorization.

1344015405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29867020 (or 29867017 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1344015405 is about 36660.8156619571. The cubic root of 1344015405 is about 1103.5738869279.

Adding to 1344015405 its reverse (5045104431), we get a palindrome (6389119836).

The spelling of 1344015405 in words is "one billion, three hundred forty-four million, fifteen thousand, four hundred five".