13504406 has 16 divisors (see below), whose sum is σ = 21073920. Its totient is φ = 6483240.

The previous prime is 13504399. The next prime is 13504411. The reversal of 13504406 is 60440531.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7835 + ... + 9401.

It is an arithmetic number, because the mean of its divisors is an integer number (1317120).

Almost surely, 2^13504406 is an apocalyptic number.

13504406 is a deficient number, since it is larger than the sum of its proper divisors (7569514).

13504406 is a wasteful number, since it uses less digits than its factorization.

13504406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 13504406 is about 3674.8341459173. The cubic root of 13504406 is about 238.1360590111.

Adding to 13504406 its reverse (60440531), we get a palindrome (73944937).

The spelling of 13504406 in words is "thirteen million, five hundred four thousand, four hundred six".