13443605 has 16 divisors (see below), whose sum is σ = 18624384. Its totient is φ = 9124800.

The previous prime is 13443589. The next prime is 13443623. The reversal of 13443605 is 50634431.

It is not a de Polignac number, because 13443605 - 2⁴ = 13443589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1634 + ... + 5436.

It is an arithmetic number, because the mean of its divisors is an integer number (1164024).

Almost surely, 2^13443605 is an apocalyptic number.

It is an amenable number.

13443605 is a deficient number, since it is larger than the sum of its proper divisors (5180779).

13443605 is a wasteful number, since it uses less digits than its factorization.

13443605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3916.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 13443605 is about 3666.5521951828. The cubic root of 13443605 is about 237.7781339866.

The spelling of 13443605 in words is "thirteen million, four hundred forty-three thousand, six hundred five".