13405433 has 4 divisors (see below), whose sum is σ = 13767780. Its totient is φ = 13043088.

The previous prime is 13405429. The next prime is 13405451. The reversal of 13405433 is 33450431.

13405433 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10705984 + 2699449 = 3272^2 + 1643^2 .

It is a cyclic number.

It is not a de Polignac number, because 13405433 - 2² = 13405429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13405399 and 13405408.

It is not an unprimeable number, because it can be changed into a prime (13405633) 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 3 ways as a sum of consecutive naturals, for example, 181118 + ... + 181191.

It is an arithmetic number, because the mean of its divisors is an integer number (3441945).

Almost surely, 2^13405433 is an apocalyptic number.

It is an amenable number.

13405433 is a deficient number, since it is larger than the sum of its proper divisors (362347).

13405433 is an equidigital number, since it uses as much as digits as its factorization.

13405433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362346.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 13405433 is about 3661.3430595889. The cubic root of 13405433 is about 237.5528702241.

Adding to 13405433 its reverse (33450431), we get a palindrome (46855864).

The spelling of 13405433 in words is "thirteen million, four hundred five thousand, four hundred thirty-three".