13428886 has 4 divisors (see below), whose sum is σ = 20143332. Its totient is φ = 6714442.

The previous prime is 13428871. The next prime is 13428889. The reversal of 13428886 is 68882431.

13428886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13428889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3357220 + ... + 3357223.

It is an arithmetic number, because the mean of its divisors is an integer number (5035833).

Almost surely, 2^13428886 is an apocalyptic number.

13428886 is a deficient number, since it is larger than the sum of its proper divisors (6714446).

13428886 is an equidigital number, since it uses as much as digits as its factorization.

13428886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6714445.

The product of its digits is 73728, while the sum is 40.

The square root of 13428886 is about 3664.5444464490. The cubic root of 13428886 is about 237.6913235805.

The spelling of 13428886 in words is "thirteen million, four hundred twenty-eight thousand, eight hundred eighty-six".