43105115040 has 192 divisors, whose sum is σ = 146886276096. Its totient is φ = 10562568192.

The previous prime is 43105115023. The next prime is 43105115047. The reversal of 43105115040 is 4051150134.

It is a happy number.

It is a super-2 number, since 2×43105115040² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 43105115040.

It is not an unprimeable number, because it can be changed into a prime (43105115047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1376032 + ... + 1407008.

It is an arithmetic number, because the mean of its divisors is an integer number (765032688).

Almost surely, 2^43105115040 is an apocalyptic number.

43105115040 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 43105115040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73443138048).

43105115040 is an abundant number, since it is smaller than the sum of its proper divisors (103781161056).

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

43105115040 is a wasteful number, since it uses less digits than its factorization.

43105115040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31231 (or 31223 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 43105115040 its reverse (4051150134), we get a palindrome (47156265174).

The spelling of 43105115040 in words is "forty-three billion, one hundred five million, one hundred fifteen thousand, forty".