43882431840 has 432 divisors, whose sum is σ = 171708683328. Its totient is φ = 10165469184.

The previous prime is 43882431821. The next prime is 43882431847. The reversal of 43882431840 is 4813428834.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43882431847) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4131817 + ... + 4142423.

It is an arithmetic number, because the mean of its divisors is an integer number (397473804).

Almost surely, 2^43882431840 is an apocalyptic number.

43882431840 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 43882431840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85854341664).

43882431840 is an abundant number, since it is smaller than the sum of its proper divisors (127826251488).

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

43882431840 is a wasteful number, since it uses less digits than its factorization.

43882431840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10671 (or 10647 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 45.

The spelling of 43882431840 in words is "forty-three billion, eight hundred eighty-two million, four hundred thirty-one thousand, eight hundred forty".