321613422 has 48 divisors (see below), whose sum is σ = 720595440. Its totient is φ = 95536896.

The previous prime is 321613421. The next prime is 321613427. The reversal of 321613422 is 224316123.

321613422 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 321613392 and 321613401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321613421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23938 + ... + 34874.

It is an arithmetic number, because the mean of its divisors is an integer number (15012405).

Almost surely, 2^321613422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321613422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360297720).

321613422 is an abundant number, since it is smaller than the sum of its proper divisors (398982018).

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

321613422 is a wasteful number, since it uses less digits than its factorization.

321613422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10997 (or 10984 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

The square root of 321613422 is about 17933.5836351801. The cubic root of 321613422 is about 685.1379990854.

Adding to 321613422 its reverse (224316123), we get a palindrome (545929545).

The spelling of 321613422 in words is "three hundred twenty-one million, six hundred thirteen thousand, four hundred twenty-two".