13443964 has 12 divisors (see below), whose sum is σ = 23567544. Its totient is φ = 6710384.

The previous prime is 13443961. The next prime is 13443977. The reversal of 13443964 is 46934431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13443961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39 + ... + 5185.

It is an arithmetic number, because the mean of its divisors is an integer number (1963962).

Almost surely, 2^13443964 is an apocalyptic number.

It is an amenable number.

13443964 is a deficient number, since it is larger than the sum of its proper divisors (10123580).

13443964 is a wasteful number, since it uses less digits than its factorization.

13443964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5804 (or 5802 counting only the distinct ones).

The product of its digits is 31104, while the sum is 34.

The square root of 13443964 is about 3666.6011509298. The cubic root of 13443964 is about 237.7802505218.

The spelling of 13443964 in words is "thirteen million, four hundred forty-three thousand, nine hundred sixty-four".