13904168 has 8 divisors (see below), whose sum is σ = 26070330. Its totient is φ = 6952080.

The previous prime is 13904159. The next prime is 13904171. The reversal of 13904168 is 86140931.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13235044 + 669124 = 3638^2 + 818^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 869003 + ... + 869018.

Almost surely, 2^13904168 is an apocalyptic number.

It is an amenable number.

13904168 is a deficient number, since it is larger than the sum of its proper divisors (12166162).

13904168 is a wasteful number, since it uses less digits than its factorization.

13904168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738027 (or 1738023 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 13904168 is about 3728.8293069005. The cubic root of 13904168 is about 240.4630412473.

The spelling of 13904168 in words is "thirteen million, nine hundred four thousand, one hundred sixty-eight".