13964405 has 32 divisors (see below), whose sum is σ = 21095424. Its totient is φ = 8637696.

The previous prime is 13964393. The next prime is 13964407. The reversal of 13964405 is 50446931.

13964405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13964405 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13964407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21059 + ... + 21711.

It is an arithmetic number, because the mean of its divisors is an integer number (659232).

Almost surely, 2^13964405 is an apocalyptic number.

It is an amenable number.

13964405 is a deficient number, since it is larger than the sum of its proper divisors (7131019).

13964405 is a wasteful number, since it uses less digits than its factorization.

13964405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 13964405 is about 3736.8977775690. The cubic root of 13964405 is about 240.8097935057.

The spelling of 13964405 in words is "thirteen million, nine hundred sixty-four thousand, four hundred five".