13504408 has 32 divisors (see below), whose sum is σ = 26634960. Its totient is φ = 6410880.

The previous prime is 13504399. The next prime is 13504411. The reversal of 13504408 is 80440531.

13504408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12198 + ... + 13258.

Almost surely, 2^13504408 is an apocalyptic number.

13504408 is the 2122-nd octagonal number.

It is an amenable number.

13504408 is a deficient number, since it is larger than the sum of its proper divisors (13130552).

13504408 is a wasteful number, since it uses less digits than its factorization.

13504408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147 (or 1143 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 13504408 is about 3674.8344180385. The cubic root of 13504408 is about 238.1360707671.

Adding to 13504408 its reverse (80440531), we get a palindrome (93944939).

The spelling of 13504408 in words is "thirteen million, five hundred four thousand, four hundred eight".