1322403344 has 80 divisors (see below), whose sum is σ = 2904724800. Its totient is φ = 579428352.

The previous prime is 1322403343. The next prime is 1322403349. The reversal of 1322403344 is 4433042231.

It is not an unprimeable number, because it can be changed into a prime (1322403343) 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, 302744 + ... + 307080.

It is an arithmetic number, because the mean of its divisors is an integer number (36309060).

Almost surely, 2^1322403344 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 1322403344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1452362400).

1322403344 is an abundant number, since it is smaller than the sum of its proper divisors (1582321456).

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

1322403344 is a wasteful number, since it uses less digits than its factorization.

1322403344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4440 (or 4434 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 1322403344 is about 36364.8641410909. The cubic root of 1322403344 is about 1097.6266582064.

Adding to 1322403344 its reverse (4433042231), we get a palindrome (5755445575).

The spelling of 1322403344 in words is "one billion, three hundred twenty-two million, four hundred three thousand, three hundred forty-four".