13225422 has 32 divisors (see below), whose sum is σ = 32009472. Its totient is φ = 3556224.

The previous prime is 13225409. The next prime is 13225423. The reversal of 13225422 is 22452231.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13225423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8548 + ... + 9975.

It is an arithmetic number, because the mean of its divisors is an integer number (1000296).

Almost surely, 2^13225422 is an apocalyptic number.

13225422 is an abundant number, since it is smaller than the sum of its proper divisors (18784050).

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

13225422 is a wasteful number, since it uses less digits than its factorization.

13225422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18552.

The product of its digits is 960, while the sum is 21.

The square root of 13225422 is about 3636.6773296513. The cubic root of 13225422 is about 236.4847715195.

Adding to 13225422 its reverse (22452231), we get a palindrome (35677653).

The spelling of 13225422 in words is "thirteen million, two hundred twenty-five thousand, four hundred twenty-two".