13406 has 4 divisors (see below), whose sum is σ = 20112. Its totient is φ = 6702.

The previous prime is 13399. The next prime is 13411. The reversal of 13406 is 60431.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3350 + ... + 3353.

It is an arithmetic number, because the mean of its divisors is an integer number (5028).

2¹³⁴⁰⁶ is an apocalyptic number.

13406 is a deficient number, since it is larger than the sum of its proper divisors (6706).

13406 is an equidigital number, since it uses as much as digits as its factorization.

13406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6705.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13406 is about 115.7842821803. The cubic root of 13406 is about 23.7556219378.

Adding to 13406 its reverse (60431), we get a palindrome (73837).

The spelling of 13406 in words is "thirteen thousand, four hundred six".