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13422 = 232237

13422 has 8 divisors (see below), whose sum is σ = 26856. Its totient is φ = 4472.

The previous prime is 13421. The next prime is 13441. The reversal of 13422 is 22431.

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

13422 is an admirable number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 13398 and 13407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1113 + ... + 1124.

It is an arithmetic number, because the mean of its divisors is an integer number (3357).

213422 is an apocalyptic number.

13422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13428).

13422 is a wasteful number, since it uses less digits than its factorization.

13422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2242.

The product of its digits is 48, while the sum is 12.

The square root of 13422 is about 115.8533555837. The cubic root of 13422 is about 23.7650689227.

Adding to 13422 its reverse (22431), we get a palindrome (35853).

Subtracting 13422 from its reverse (22431), we obtain a palindrome (9009).

It can be divided in two parts, 13 and 422, that added together give a triangular number (435 = T29).

The spelling of 13422 in words is "thirteen thousand, four hundred twenty-two".

Divisors: 1 2 3 6 2237 4474 6711 13422