13258478 has 4 divisors (see below), whose sum is σ = 19887720. Its totient is φ = 6629238.

The previous prime is 13258471. The next prime is 13258489. The reversal of 13258478 is 87485231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87485231 = 2089 ⋅41879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13258471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3314618 + ... + 3314621.

It is an arithmetic number, because the mean of its divisors is an integer number (4971930).

Almost surely, 2^13258478 is an apocalyptic number.

13258478 is a deficient number, since it is larger than the sum of its proper divisors (6629242).

13258478 is an equidigital number, since it uses as much as digits as its factorization.

13258478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6629241.

The product of its digits is 53760, while the sum is 38.

The square root of 13258478 is about 3641.2193012781. The cubic root of 13258478 is about 236.6816332090.

The spelling of 13258478 in words is "thirteen million, two hundred fifty-eight thousand, four hundred seventy-eight".