1340336437441 has 3 divisors (see below), whose sum is σ = 1340337595171. Its totient is φ = 1340335279712.

The previous prime is 1340336437381. The next prime is 1340336437459. The reversal of 1340336437441 is 1447346330431.

The square root of 1340336437441 is 1157729.

It is a perfect power (a square), and thus also a powerful 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 only one way, i.e., 1310862415041 + 29474022400 = 1144929^2 + 171680^2 .

It is not a de Polignac number, because 1340336437441 - 2²³ = 1340328048833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340336437481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 578865 + ... + 1736593.

Almost surely, 2^{1340336437441} is an apocalyptic number.

1340336437441 is the 1157729-th square number.

1340336437441 is the 578865-th centered octagonal number.

It is an amenable number.

1340336437441 is a deficient number, since it is larger than the sum of its proper divisors (1157730).

1340336437441 is an frugal number, since it uses more digits than its factorization.

1340336437441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315458 (or 1157729 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 43.

The spelling of 1340336437441 in words is "one trillion, three hundred forty billion, three hundred thirty-six million, four hundred thirty-seven thousand, four hundred forty-one".