13430056 has 8 divisors (see below), whose sum is σ = 25181370. Its totient is φ = 6715024.

The previous prime is 13430009. The next prime is 13430063. The reversal of 13430056 is 65003431.

13430056 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 only one way, i.e., 12489156 + 940900 = 3534^2 + 970^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a nialpdrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 839371 + ... + 839386.

Almost surely, 2^13430056 is an apocalyptic number.

It is an amenable number.

13430056 is a deficient number, since it is larger than the sum of its proper divisors (11751314).

13430056 is a wasteful number, since it uses less digits than its factorization.

13430056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678763 (or 1678759 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 13430056 is about 3664.7040808229. The cubic root of 13430056 is about 237.6982263812.

Adding to 13430056 its reverse (65003431), we get a palindrome (78433487).

The spelling of 13430056 in words is "thirteen million, four hundred thirty thousand, fifty-six".