43158071040 has 720 divisors, whose sum is σ = 167085520896. Its totient is φ = 9483264000.

The previous prime is 43158071029. The next prime is 43158071041. The reversal of 43158071040 is 4017085134.

It is a junction number, because it is equal to n+sod(n) for n = 43158070992 and 43158071010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43158071041) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 285814965 + ... + 285815115.

Almost surely, 2^43158071040 is an apocalyptic number.

43158071040 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 43158071040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83542760448).

43158071040 is an abundant number, since it is smaller than the sum of its proper divisors (123927449856).

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

43158071040 is an equidigital number, since it uses as much as digits as its factorization.

43158071040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The spelling of 43158071040 in words is "forty-three billion, one hundred fifty-eight million, seventy-one thousand, forty".