13404408 has 32 divisors (see below), whose sum is σ = 33682560. Its totient is φ = 4445280.

The previous prime is 13404407. The next prime is 13404427. The reversal of 13404408 is 80440431.

It is a super-5 number, since 5×13404408⁵ (a number of 37 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13404403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3741 + ... + 6387.

It is an arithmetic number, because the mean of its divisors is an integer number (1052580).

Almost surely, 2^13404408 is an apocalyptic number.

It is an amenable number.

13404408 is an abundant number, since it is smaller than the sum of its proper divisors (20278152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13404408 is a wasteful number, since it uses less digits than its factorization.

13404408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2867 (or 2863 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 13404408 is about 3661.2030809558. The cubic root of 13404408 is about 237.5468155173.

Adding to 13404408 its reverse (80440431), we get a palindrome (93844839).

The spelling of 13404408 in words is "thirteen million, four hundred four thousand, four hundred eight".