44386990680 has 128 divisors (see below), whose sum is σ = 139126533120. Its totient is φ = 11307563520.

The previous prime is 44386990663. The next prime is 44386990709. The reversal of 44386990680 is 8609968344.

It is a self number, because there is not a number n which added to its sum of digits gives 44386990680.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2261710 + ... + 2281250.

It is an arithmetic number, because the mean of its divisors is an integer number (1086926040).

Almost surely, 2^44386990680 is an apocalyptic number.

44386990680 is a gapful number since it is divisible by the number (40) 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 44386990680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69563266560).

44386990680 is an abundant number, since it is smaller than the sum of its proper divisors (94739542440).

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

44386990680 is a wasteful number, since it uses less digits than its factorization.

44386990680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20401 (or 20397 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 57.

The spelling of 44386990680 in words is "forty-four billion, three hundred eighty-six million, nine hundred ninety thousand, six hundred eighty".