13489445 has 12 divisors (see below), whose sum is σ = 16459884. Its totient is φ = 10612800.

The previous prime is 13489429. The next prime is 13489481. The reversal of 13489445 is 54498431.

It can be written as a sum of positive squares in 2 ways, for example, as 8300161 + 5189284 = 2881^2 + 2278^2 .

It is not a de Polignac number, because 13489445 - 2⁴ = 13489429 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13489399 and 13489408.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 22145 + ... + 22745.

It is an arithmetic number, because the mean of its divisors is an integer number (1371657).

Almost surely, 2^13489445 is an apocalyptic number.

It is an amenable number.

13489445 is a deficient number, since it is larger than the sum of its proper divisors (2970439).

13489445 is an frugal number, since it uses more digits than its factorization.

13489445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740 (or 673 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 13489445 is about 3672.7979797424. The cubic root of 13489445 is about 238.0480859928.

The spelling of 13489445 in words is "thirteen million, four hundred eighty-nine thousand, four hundred forty-five".