43963441440 has 192 divisors, whose sum is σ = 143142660864. Its totient is φ = 11333357568.

The previous prime is 43963441439. The next prime is 43963441507. The reversal of 43963441440 is 4414436934.

It is a junction number, because it is equal to n+sod(n) for n = 43963441392 and 43963441401.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2780437 + ... + 2796203.

It is an arithmetic number, because the mean of its divisors is an integer number (745534692).

Almost surely, 2^43963441440 is an apocalyptic number.

43963441440 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 43963441440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71571330432).

43963441440 is an abundant number, since it is smaller than the sum of its proper divisors (99179219424).

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

43963441440 is a wasteful number, since it uses less digits than its factorization.

43963441440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15979 (or 15971 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 43963441440 in words is "forty-three billion, nine hundred sixty-three million, four hundred forty-one thousand, four hundred forty".