13430306 has 32 divisors (see below), whose sum is σ = 22569840. Its totient is φ = 5963776.

The previous prime is 13430303. The next prime is 13430369. The reversal of 13430306 is 60303431.

13430306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 12996025 + 434281 = 3605^2 + 659^2 .

It is a zygodrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13430303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52130 + ... + 52386.

Almost surely, 2^13430306 is an apocalyptic number.

13430306 is a deficient number, since it is larger than the sum of its proper divisors (9139534).

13430306 is a wasteful number, since it uses less digits than its factorization.

13430306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 13430306 is about 3664.7381898302. The cubic root of 13430306 is about 237.6997012867.

Adding to 13430306 its reverse (60303431), we get a palindrome (73733737).

The spelling of 13430306 in words is "thirteen million, four hundred thirty thousand, three hundred six".