13404305 has 8 divisors (see below), whose sum is σ = 16184832. Its totient is φ = 10657008.

The previous prime is 13404299. The next prime is 13404319. The reversal of 13404305 is 50340431.

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 13404305 - 2⁴ = 13404289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7409 + ... + 9038.

It is an arithmetic number, because the mean of its divisors is an integer number (2023104).

Almost surely, 2^13404305 is an apocalyptic number.

It is an amenable number.

13404305 is a deficient number, since it is larger than the sum of its proper divisors (2780527).

13404305 is a wasteful number, since it uses less digits than its factorization.

13404305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16615.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 13404305 is about 3661.1890145143. The cubic root of 13404305 is about 237.5462070760.

Adding to 13404305 its reverse (50340431), we get a palindrome (63744736).

The spelling of 13404305 in words is "thirteen million, four hundred four thousand, three hundred five".