44320421340 has 144 divisors (see below), whose sum is σ = 146525023008. Its totient is φ = 10778153472.

The previous prime is 44320421333. The next prime is 44320421357. The reversal of 44320421340 is 4312402344.

It is a happy number.

44320421340 is a `hidden beast` number, since 443 + 2 + 0 + 4 + 213 + 4 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80122 + ... + 308318.

It is an arithmetic number, because the mean of its divisors is an integer number (1017534882).

Almost surely, 2^44320421340 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 44320421340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73262511504).

44320421340 is an abundant number, since it is smaller than the sum of its proper divisors (102204601668).

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

44320421340 is a wasteful number, since it uses less digits than its factorization.

44320421340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228308 (or 228303 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 44320421340 its reverse (4312402344), we get a palindrome (48632823684).

The spelling of 44320421340 in words is "forty-four billion, three hundred twenty million, four hundred twenty-one thousand, three hundred forty".