13881398 has 8 divisors (see below), whose sum is σ = 20846808. Its totient is φ = 6932464.

The previous prime is 13881391. The next prime is 13881407. The reversal of 13881398 is 89318831.

It is a happy number.

13881398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13881391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1736 + ... + 5547.

It is an arithmetic number, because the mean of its divisors is an integer number (2605851).

Almost surely, 2^13881398 is an apocalyptic number.

13881398 is a deficient number, since it is larger than the sum of its proper divisors (6965410).

13881398 is an equidigital number, since it uses as much as digits as its factorization.

13881398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8238.

The product of its digits is 41472, while the sum is 41.

The square root of 13881398 is about 3725.7748187458. The cubic root of 13881398 is about 240.3317056879.

The spelling of 13881398 in words is "thirteen million, eight hundred eighty-one thousand, three hundred ninety-eight".