13448840 has 16 divisors (see below), whose sum is σ = 30259980. Its totient is φ = 5379520.

The previous prime is 13448839. The next prime is 13448849. The reversal of 13448840 is 4884431.

It can be written as a sum of positive squares in 2 ways, for example, as 11276164 + 2172676 = 3358^2 + 1474^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13448797 and 13448806.

It is not an unprimeable number, because it can be changed into a prime (13448849) 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, 168071 + ... + 168150.

Almost surely, 2^13448840 is an apocalyptic number.

13448840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13448840 is an abundant number, since it is smaller than the sum of its proper divisors (16811140).

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

13448840 is a wasteful number, since it uses less digits than its factorization.

13448840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336232 (or 336228 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 13448840 is about 3667.2660116223. The cubic root of 13448840 is about 237.8089939381.

The spelling of 13448840 in words is "thirteen million, four hundred forty-eight thousand, eight hundred forty".