13909768 has 16 divisors (see below), whose sum is σ = 26243280. Its totient is φ = 6911568.

The previous prime is 13909751. The next prime is 13909771. The reversal of 13909768 is 86790931.

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 3 ways as a sum of consecutive naturals, for example, 4030 + ... + 6637.

It is an arithmetic number, because the mean of its divisors is an integer number (1640205).

Almost surely, 2^13909768 is an apocalyptic number.

It is an amenable number.

13909768 is a deficient number, since it is larger than the sum of its proper divisors (12333512).

13909768 is a wasteful number, since it uses less digits than its factorization.

13909768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10836 (or 10832 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 13909768 is about 3729.5801372272. The cubic root of 13909768 is about 240.4953196329.

The spelling of 13909768 in words is "thirteen million, nine hundred nine thousand, seven hundred sixty-eight".