1322404642944 has 576 divisors, whose sum is σ = 4911046264800. Its totient is φ = 337650647040.

The previous prime is 1322404642907. The next prime is 1322404642963. The reversal of 1322404642944 is 4492464042231.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (576).

It is a self number, because there is not a number n which added to its sum of digits gives 1322404642944.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 36616704 + ... + 36652800.

Almost surely, 2^{1322404642944} is an apocalyptic number.

1322404642944 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 1322404642944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2455523132400).

1322404642944 is an abundant number, since it is smaller than the sum of its proper divisors (3588641621856).

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

1322404642944 is a wasteful number, since it uses less digits than its factorization.

1322404642944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36201 (or 36179 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 45.

The spelling of 1322404642944 in words is "one trillion, three hundred twenty-two billion, four hundred four million, six hundred forty-two thousand, nine hundred forty-four".