13400305 has 8 divisors (see below), whose sum is σ = 16454592. Its totient is φ = 10470768.

The previous prime is 13400281. The next prime is 13400341. The reversal of 13400305 is 50300431.

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 13400305 - 2⁵ = 13400273 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 30949 + ... + 31378.

It is an arithmetic number, because the mean of its divisors is an integer number (2056824).

Almost surely, 2^13400305 is an apocalyptic number.

It is an amenable number.

13400305 is a deficient number, since it is larger than the sum of its proper divisors (3054287).

13400305 is an equidigital number, since it uses as much as digits as its factorization.

13400305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62375.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 13400305 is about 3660.6427031329. The cubic root of 13400305 is about 237.5225758780.

Adding to 13400305 its reverse (50300431), we get a palindrome (63700736).

The spelling of 13400305 in words is "thirteen million, four hundred thousand, three hundred five".