13981896 has 40 divisors (see below), whose sum is σ = 39164070. Its totient is φ = 4660416.

The previous prime is 13981883. The next prime is 13981897. The reversal of 13981896 is 69818931.

It can be written as a sum of positive squares in only one way, i.e., 9696996 + 4284900 = 3114^2 + 2070^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (13981897) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 10141 + ... + 11436.

Almost surely, 2^13981896 is an apocalyptic number.

It is an amenable number.

13981896 is an abundant number, since it is smaller than the sum of its proper divisors (25182174).

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

13981896 is a wasteful number, since it uses less digits than its factorization.

13981896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21595 (or 21582 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 13981896 is about 3739.2373553975. The cubic root of 13981896 is about 240.9102929959.

The spelling of 13981896 in words is "thirteen million, nine hundred eighty-one thousand, eight hundred ninety-six".