30322403440 has 120 divisors (see below), whose sum is σ = 83755121472. Its totient is φ = 10174993920.

The previous prime is 30322403401. The next prime is 30322403453. The reversal of 30322403440 is 4430422303.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 101950 + ... + 266530.

Almost surely, 2^30322403440 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 30322403440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41877560736).

30322403440 is an abundant number, since it is smaller than the sum of its proper divisors (53432718032).

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

30322403440 is a wasteful number, since it uses less digits than its factorization.

30322403440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164655 (or 164642 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 30322403440 its reverse (4430422303), we get a palindrome (34752825743).

The spelling of 30322403440 in words is "thirty billion, three hundred twenty-two million, four hundred three thousand, four hundred forty".