13440033 has 16 divisors (see below), whose sum is σ = 20166400. Its totient is φ = 8845200.

The previous prime is 13440001. The next prime is 13440041. The reversal of 13440033 is 33004431.

13440033 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 13440033 - 2⁵ = 13440001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13439988 and 13440015.

It is not an unprimeable number, because it can be changed into a prime (13440043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1018 + ... + 5283.

It is an arithmetic number, because the mean of its divisors is an integer number (1260400).

Almost surely, 2^13440033 is an apocalyptic number.

It is an amenable number.

13440033 is a deficient number, since it is larger than the sum of its proper divisors (6726367).

13440033 is an equidigital number, since it uses as much as digits as its factorization.

13440033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6389 (or 6383 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 13440033 is about 3666.0650567059. The cubic root of 13440033 is about 237.7570727030.

Adding to 13440033 its reverse (33004431), we get a palindrome (46444464).

The spelling of 13440033 in words is "thirteen million, four hundred forty thousand, thirty-three".