14317840 has 20 divisors (see below), whose sum is σ = 33289164. Its totient is φ = 5727104.

The previous prime is 14317829. The next prime is 14317847. The reversal of 14317840 is 4871341.

It can be written as a sum of positive squares in 2 ways, for example, as 3268864 + 11048976 = 1808^2 + 3324^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 14317799 and 14317808.

It is not an unprimeable number, because it can be changed into a prime (14317847) 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 in 3 ways as a sum of consecutive naturals, for example, 89407 + ... + 89566.

Almost surely, 2^14317840 is an apocalyptic number.

14317840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14317840 is an abundant number, since it is smaller than the sum of its proper divisors (18971324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14317840 is a wasteful number, since it uses less digits than its factorization.

14317840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178986 (or 178980 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 14317840 is about 3783.8921760536. The cubic root of 14317840 is about 242.8244991550.

The spelling of 14317840 in words is "fourteen million, three hundred seventeen thousand, eight hundred forty".