13404443 has 8 divisors (see below), whose sum is σ = 15195600. Its totient is φ = 11721888.

The previous prime is 13404427. The next prime is 13404451. The reversal of 13404443 is 34440431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13404443 - 2⁴ = 13404427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13404403) 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 7 ways as a sum of consecutive naturals, for example, 26888 + ... + 27381.

It is an arithmetic number, because the mean of its divisors is an integer number (1899450).

Almost surely, 2^13404443 is an apocalyptic number.

13404443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13404443 is a deficient number, since it is larger than the sum of its proper divisors (1791157).

13404443 is a wasteful number, since it uses less digits than its factorization.

13404443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54301.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 13404443 is about 3661.2078608022. The cubic root of 13404443 is about 237.5470222685.

Adding to 13404443 its reverse (34440431), we get a palindrome (47844874).

The spelling of 13404443 in words is "thirteen million, four hundred four thousand, four hundred forty-three".