43480995840 has 576 divisors, whose sum is σ = 159970749120. Its totient is φ = 10899947520.

The previous prime is 43480995787. The next prime is 43480995847. The reversal of 43480995840 is 4859908434.

43480995840 is a `hidden beast` number, since 434 + 80 + 9 + 95 + 8 + 40 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43480995847) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 154736500 + ... + 154736780.

It is an arithmetic number, because the mean of its divisors is an integer number (277726995).

Almost surely, 2^43480995840 is an apocalyptic number.

43480995840 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 43480995840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79985374560).

43480995840 is an abundant number, since it is smaller than the sum of its proper divisors (116489753280).

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

43480995840 is a wasteful number, since it uses less digits than its factorization.

43480995840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 43480995840 in words is "forty-three billion, four hundred eighty million, nine hundred ninety-five thousand, eight hundred forty".