13044405 has 24 divisors (see below), whose sum is σ = 22944096. Its totient is φ = 6323680.

The previous prime is 13044377. The next prime is 13044407. The reversal of 13044405 is 50444031.

13044405 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13044405 - 2⁹ = 13043893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13044407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1779 + ... + 5408.

It is an arithmetic number, because the mean of its divisors is an integer number (956004).

Almost surely, 2^13044405 is an apocalyptic number.

13044405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13044405 is a deficient number, since it is larger than the sum of its proper divisors (9899691).

13044405 is a wasteful number, since it uses less digits than its factorization.

13044405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7217 (or 7206 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 13044405 is about 3611.7038915171. The cubic root of 13044405 is about 235.4008850813.

Adding to 13044405 its reverse (50444031), we get a palindrome (63488436).

The spelling of 13044405 in words is "thirteen million, forty-four thousand, four hundred five".