13908429 has 40 divisors (see below), whose sum is σ = 22302720. Its totient is φ = 8618400.

The previous prime is 13908421. The next prime is 13908439. The reversal of 13908429 is 92480931.

13908429 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13908429 - 2³ = 13908421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13908393 and 13908402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13908421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 72724 + ... + 72914.

It is an arithmetic number, because the mean of its divisors is an integer number (557568).

Almost surely, 2^13908429 is an apocalyptic number.

It is an amenable number.

13908429 is a deficient number, since it is larger than the sum of its proper divisors (8394291).

13908429 is a wasteful number, since it uses less digits than its factorization.

13908429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 13908429 is about 3729.4006220839. The cubic root of 13908429 is about 240.4876024286.

The spelling of 13908429 in words is "thirteen million, nine hundred eight thousand, four hundred twenty-nine".