13401406 has 16 divisors (see below), whose sum is σ = 21352464. Its totient is φ = 6286464.

The previous prime is 13401397. The next prime is 13401467. The reversal of 13401406 is 60410431.

It is a happy number.

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, 20521 + ... + 21163.

It is an arithmetic number, because the mean of its divisors is an integer number (1334529).

Almost surely, 2^13401406 is an apocalyptic number.

13401406 is a deficient number, since it is larger than the sum of its proper divisors (7951058).

13401406 is a wasteful number, since it uses less digits than its factorization.

13401406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 13401406 is about 3660.7930834725. The cubic root of 13401406 is about 237.5290808342.

Adding to 13401406 its reverse (60410431), we get a palindrome (73811837).

The spelling of 13401406 in words is "thirteen million, four hundred one thousand, four hundred six".