13440403334 has 8 divisors (see below), whose sum is σ = 20256153528. Its totient is φ = 6688352160.

The previous prime is 13440403297. The next prime is 13440403343. The reversal of 13440403334 is 43330404431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13440403297 and 13440403306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15924227 + ... + 15925070.

It is an arithmetic number, because the mean of its divisors is an integer number (2532019191).

Almost surely, 2^13440403334 is an apocalyptic number.

13440403334 is a deficient number, since it is larger than the sum of its proper divisors (6815750194).

13440403334 is a wasteful number, since it uses less digits than its factorization.

13440403334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31849510.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 13440403334 its reverse (43330404431), we get a palindrome (56770807765).

The spelling of 13440403334 in words is "thirteen billion, four hundred forty million, four hundred three thousand, three hundred thirty-four".