13278558 has 8 divisors (see below), whose sum is σ = 26557128. Its totient is φ = 4426184.

The previous prime is 13278497. The next prime is 13278563. The reversal of 13278558 is 85587231.

It is a sphenic number, since it is the product of 3 distinct primes.

13278558 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1106541 + ... + 1106552.

It is an arithmetic number, because the mean of its divisors is an integer number (3319641).

Almost surely, 2^13278558 is an apocalyptic number.

13278558 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13278558 is a wasteful number, since it uses less digits than its factorization.

13278558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213098.

The product of its digits is 67200, while the sum is 39.

The square root of 13278558 is about 3643.9755762079. The cubic root of 13278558 is about 236.8010579261.

The spelling of 13278558 in words is "thirteen million, two hundred seventy-eight thousand, five hundred fifty-eight".