13404203 has 4 divisors (see below), whose sum is σ = 13415808. Its totient is φ = 13392600.

The previous prime is 13404169. The next prime is 13404233. The reversal of 13404203 is 30240431.

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

It is a cyclic number.

It is not a de Polignac number, because 13404203 - 2¹⁰ = 13403179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13404233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3851 + ... + 6452.

It is an arithmetic number, because the mean of its divisors is an integer number (3353952).

Almost surely, 2^13404203 is an apocalyptic number.

13404203 is a deficient number, since it is larger than the sum of its proper divisors (11605).

13404203 is a wasteful number, since it uses less digits than its factorization.

13404203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11604.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 13404203 is about 3661.1750845869. The cubic root of 13404203 is about 237.5456045389.

Adding to 13404203 its reverse (30240431), we get a palindrome (43644634).

The spelling of 13404203 in words is "thirteen million, four hundred four thousand, two hundred three".