1322444004 has 96 divisors (see below), whose sum is σ = 3832012800. Its totient is φ = 346394880.

The previous prime is 1322444003. The next prime is 1322444027. The reversal of 1322444004 is 4004442231.

1322444004 = T₁₁₇₈₉ + T₁₁₇₉₀ + ... + T₁₁₈₀₇.

It is a happy number.

1322444004 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1322444003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36112 + ... + 62840.

It is an arithmetic number, because the mean of its divisors is an integer number (39916800).

Almost surely, 2^1322444004 is an apocalyptic number.

1322444004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1322444004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1916006400).

1322444004 is an abundant number, since it is smaller than the sum of its proper divisors (2509568796).

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

1322444004 is a wasteful number, since it uses less digits than its factorization.

1322444004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26793 (or 26791 counting only the distinct ones).

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

The square root of 1322444004 is about 36365.4231929177. The cubic root of 1322444004 is about 1097.6379076845.

Adding to 1322444004 its reverse (4004442231), we get a palindrome (5326886235).

The spelling of 1322444004 in words is "one billion, three hundred twenty-two million, four hundred forty-four thousand, four".