13405204 has 6 divisors (see below), whose sum is σ = 23459114. Its totient is φ = 6702600.

The previous prime is 13405187. The next prime is 13405219. The reversal of 13405204 is 40250431.

It can be written as a sum of positive squares in only one way, i.e., 13395600 + 9604 = 3660^2 + 98^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1675647 + ... + 1675654.

Almost surely, 2^13405204 is an apocalyptic number.

It is an amenable number.

13405204 is a deficient number, since it is larger than the sum of its proper divisors (10053910).

13405204 is a wasteful number, since it uses less digits than its factorization.

13405204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3351305 (or 3351303 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 13405204 is about 3661.3117867781. The cubic root of 13405204 is about 237.5515175407.

Adding to 13405204 its reverse (40250431), we get a palindrome (53655635).

The spelling of 13405204 in words is "thirteen million, four hundred five thousand, two hundred four".