43042729320 has 80 divisors (see below), whose sum is σ = 144671406660. Its totient is φ = 11478060288.

The previous prime is 43042729273. The next prime is 43042729351. The reversal of 43042729320 is 2392724034.

It is a happy number.

43042729320 is a `hidden beast` number, since 4 + 304 + 2 + 7 + 29 + 320 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 42529163076 + 513566244 = 206226^2 + 22662^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6639157 + ... + 6645636.

Almost surely, 2^43042729320 is an apocalyptic number.

43042729320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43042729320 is an abundant number, since it is smaller than the sum of its proper divisors (101628677340).

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

43042729320 is a wasteful number, since it uses less digits than its factorization.

43042729320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13284816 (or 13284803 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The spelling of 43042729320 in words is "forty-three billion, forty-two million, seven hundred twenty-nine thousand, three hundred twenty".