13881896 has 32 divisors (see below), whose sum is σ = 30360000. Its totient is φ = 5948208.

The previous prime is 13881871. The next prime is 13881943. The reversal of 13881896 is 69818831.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215 + ... + 5273.

It is an arithmetic number, because the mean of its divisors is an integer number (948750).

Almost surely, 2^13881896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13881896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15180000).

13881896 is an abundant number, since it is smaller than the sum of its proper divisors (16478104).

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

13881896 is an equidigital number, since it uses as much as digits as its factorization.

13881896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5086 (or 5068 counting only the distinct ones).

The product of its digits is 82944, while the sum is 44.

The square root of 13881896 is about 3725.8416498826. The cubic root of 13881896 is about 240.3345796481.

The spelling of 13881896 in words is "thirteen million, eight hundred eighty-one thousand, eight hundred ninety-six".