13840808 has 8 divisors (see below), whose sum is σ = 25951530. Its totient is φ = 6920400.

The previous prime is 13840807. The next prime is 13840829. The reversal of 13840808 is 80804831.

It can be written as a sum of positive squares in only one way, i.e., 12545764 + 1295044 = 3542^2 + 1138^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13840807) 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 as a sum of consecutive naturals, namely, 865043 + ... + 865058.

Almost surely, 2^13840808 is an apocalyptic number.

It is an amenable number.

13840808 is a deficient number, since it is larger than the sum of its proper divisors (12110722).

13840808 is a wasteful number, since it uses less digits than its factorization.

13840808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730107 (or 1730103 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 13840808 is about 3720.3236418355. The cubic root of 13840808 is about 240.0972291236.

The spelling of 13840808 in words is "thirteen million, eight hundred forty thousand, eight hundred eight".