321422244 has 96 divisors (see below), whose sum is σ = 892631040. Its totient is φ = 88732800.

The previous prime is 321422243. The next prime is 321422251. The reversal of 321422244 is 442224123.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (321422243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134379 + ... + 136749.

It is an arithmetic number, because the mean of its divisors is an integer number (9298240).

Almost surely, 2^321422244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321422244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446315520).

321422244 is an abundant number, since it is smaller than the sum of its proper divisors (571208796).

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

321422244 is a wasteful number, since it uses less digits than its factorization.

321422244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2481 (or 2479 counting only the distinct ones).

The product of its digits is 3072, while the sum is 24.

The square root of 321422244 is about 17928.2526755956. The cubic root of 321422244 is about 685.0022157031.

Adding to 321422244 its reverse (442224123), we get a palindrome (763646367).

The spelling of 321422244 in words is "three hundred twenty-one million, four hundred twenty-two thousand, two hundred forty-four".