43180728040 has 16 divisors (see below), whose sum is σ = 97156638180. Its totient is φ = 17272291200.

The previous prime is 43180728013. The next prime is 43180728047. The reversal of 43180728040 is 4082708134.

43180728040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 39330029124 + 3850698916 = 198318^2 + 62054^2 .

It is not an unprimeable number, because it can be changed into a prime (43180728047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539759061 + ... + 539759140.

Almost surely, 2^43180728040 is an apocalyptic number.

43180728040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43180728040 is an abundant number, since it is smaller than the sum of its proper divisors (53975910140).

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

43180728040 is a wasteful number, since it uses less digits than its factorization.

43180728040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079518212 (or 1079518208 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The spelling of 43180728040 in words is "forty-three billion, one hundred eighty million, seven hundred twenty-eight thousand, forty".