13428078 has 8 divisors (see below), whose sum is σ = 26856168. Its totient is φ = 4476024.

The previous prime is 13428061. The next prime is 13428089. The reversal of 13428078 is 87082431.

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

13428078 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, 1119001 + ... + 1119012.

It is an arithmetic number, because the mean of its divisors is an integer number (3357021).

Almost surely, 2^13428078 is an apocalyptic number.

13428078 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.

13428078 is a wasteful number, since it uses less digits than its factorization.

13428078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238018.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 13428078 is about 3664.4341991636. The cubic root of 13428078 is about 237.6865562841.

The spelling of 13428078 in words is "thirteen million, four hundred twenty-eight thousand, seventy-eight".