13330443 has 16 divisors (see below), whose sum is σ = 20376576. Its totient is φ = 7593600.

The previous prime is 13330439. The next prime is 13330451. The reversal of 13330443 is 34403331.

It is not a de Polignac number, because 13330443 - 2² = 13330439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (13330423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7630 + ... + 9212.

It is an arithmetic number, because the mean of its divisors is an integer number (1273536).

Almost surely, 2^13330443 is an apocalyptic number.

13330443 is a deficient number, since it is larger than the sum of its proper divisors (7046133).

13330443 is a wasteful number, since it uses less digits than its factorization.

13330443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 13330443 is about 3651.0879200589. The cubic root of 13330443 is about 237.1090847156.

Adding to 13330443 its reverse (34403331), we get a palindrome (47733774).

The spelling of 13330443 in words is "thirteen million, three hundred thirty thousand, four hundred forty-three".