13402406 has 8 divisors (see below), whose sum is σ = 20173104. Its totient is φ = 6678040.

The previous prime is 13402373. The next prime is 13402423. The reversal of 13402406 is 60420431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 10850 + ... + 12021.

It is an arithmetic number, because the mean of its divisors is an integer number (2521638).

Almost surely, 2^13402406 is an apocalyptic number.

13402406 is a deficient number, since it is larger than the sum of its proper divisors (6770698).

13402406 is a wasteful number, since it uses less digits than its factorization.

13402406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23166.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 13402406 is about 3660.9296633506. The cubic root of 13402406 is about 237.5349887510.

Adding to 13402406 its reverse (60420431), we get a palindrome (73822837).

The spelling of 13402406 in words is "thirteen million, four hundred two thousand, four hundred six".