13400404 has 12 divisors (see below), whose sum is σ = 23514624. Its totient is φ = 6681944.

The previous prime is 13400389. The next prime is 13400417. The reversal of 13400404 is 40400431.

13400404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2842 + ... + 5905.

It is an arithmetic number, because the mean of its divisors is an integer number (1959552).

Almost surely, 2^13400404 is an apocalyptic number.

It is an amenable number.

13400404 is a deficient number, since it is larger than the sum of its proper divisors (10114220).

13400404 is a wasteful number, since it uses less digits than its factorization.

13400404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9134 (or 9132 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 13400404 is about 3660.6562253235. The cubic root of 13400404 is about 237.5231608069.

Adding to 13400404 its reverse (40400431), we get a palindrome (53800835).

The spelling of 13400404 in words is "thirteen million, four hundred thousand, four hundred four".