43871959040 has 576 divisors, whose sum is σ = 136959076800. Its totient is φ = 13131841536.

The previous prime is 43871959037. The next prime is 43871959057. The reversal of 43871959040 is 4095917834.

It is a self number, because there is not a number n which added to its sum of digits gives 43871959040.

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, 492943316 + ... + 492943404.

It is an arithmetic number, because the mean of its divisors is an integer number (237776175).

Almost surely, 2^43871959040 is an apocalyptic number.

43871959040 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 43871959040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68479538400).

43871959040 is an abundant number, since it is smaller than the sum of its proper divisors (93087117760).

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

43871959040 is a wasteful number, since it uses less digits than its factorization.

43871959040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 43871959040 in words is "forty-three billion, eight hundred seventy-one million, nine hundred fifty-nine thousand, forty".