43847808040 has 32 divisors (see below), whose sum is σ = 98668178280. Its totient is φ = 17537236992.

The previous prime is 43847808029. The next prime is 43847808071. The reversal of 43847808040 is 4080874834.

It can be written as a sum of positive squares in 4 ways, for example, as 43594934436 + 252873604 = 208794^2 + 15902^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353224 + ... + 460936.

Almost surely, 2^43847808040 is an apocalyptic number.

43847808040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43847808040 is an abundant number, since it is smaller than the sum of its proper divisors (54820370240).

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

43847808040 is a wasteful number, since it uses less digits than its factorization.

43847808040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117901 (or 117897 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 46.

The spelling of 43847808040 in words is "forty-three billion, eight hundred forty-seven million, eight hundred eight thousand, forty".