13443406 has 8 divisors (see below), whose sum is σ = 20350440. Its totient is φ = 6659928.

The previous prime is 13443389. The next prime is 13443407. The reversal of 13443406 is 60434431.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13443407) 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 3 ways as a sum of consecutive naturals, for example, 30616 + ... + 31051.

It is an arithmetic number, because the mean of its divisors is an integer number (2543805).

Almost surely, 2^13443406 is an apocalyptic number.

13443406 is a deficient number, since it is larger than the sum of its proper divisors (6907034).

13443406 is a wasteful number, since it uses less digits than its factorization.

13443406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61778.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 13443406 is about 3666.5250578716. The cubic root of 13443406 is about 237.7769607377.

Adding to 13443406 its reverse (60434431), we get a palindrome (73877837).

Subtracting 13443406 from its reverse (60434431), we obtain a square (46991025 = 6855²).

The spelling of 13443406 in words is "thirteen million, four hundred forty-three thousand, four hundred six".