13803988 has 12 divisors (see below), whose sum is σ = 26353152. Its totient is φ = 6274520.

The previous prime is 13803961. The next prime is 13803991. The reversal of 13803988 is 88930831.

It is a self number, because there is not a number n which added to its sum of digits gives 13803988.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 156820 + ... + 156907.

It is an arithmetic number, because the mean of its divisors is an integer number (2196096).

Almost surely, 2^13803988 is an apocalyptic number.

It is an amenable number.

13803988 is a deficient number, since it is larger than the sum of its proper divisors (12549164).

13803988 is a wasteful number, since it uses less digits than its factorization.

13803988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313742 (or 313740 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 13803988 is about 3715.3718521838. The cubic root of 13803988 is about 239.8841338865.

The spelling of 13803988 in words is "thirteen million, eight hundred three thousand, nine hundred eighty-eight".