13370305 has 32 divisors (see below), whose sum is σ = 18416160. Its totient is φ = 9246720.

The previous prime is 13370297. The next prime is 13370309. The reversal of 13370305 is 50307331.

It can be written as a sum of positive squares in 16 ways, for example, as 5400976 + 7969329 = 2324^2 + 2823^2 .

It is not a de Polignac number, because 13370305 - 2³ = 13370297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13370309) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77199 + ... + 77371.

It is an arithmetic number, because the mean of its divisors is an integer number (575505).

Almost surely, 2^13370305 is an apocalyptic number.

It is an amenable number.

13370305 is a deficient number, since it is larger than the sum of its proper divisors (5045855).

13370305 is a wasteful number, since it uses less digits than its factorization.

13370305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261.

The product of its (nonzero) digits is 945, while the sum is 22.

The square root of 13370305 is about 3656.5427660565. The cubic root of 13370305 is about 237.3451918197.

Adding to 13370305 its reverse (50307331), we get a palindrome (63677636).

The spelling of 13370305 in words is "thirteen million, three hundred seventy thousand, three hundred five".