43193891940 has 24 divisors (see below), whose sum is σ = 120942897600. Its totient is φ = 11518371168.

The previous prime is 43193891933. The next prime is 43193891953. The reversal of 43193891940 is 4919839134.

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 7 ways as a sum of consecutive naturals, for example, 359949040 + ... + 359949159.

It is an arithmetic number, because the mean of its divisors is an integer number (5039287400).

Almost surely, 2^43193891940 is an apocalyptic number.

It is an amenable number.

43193891940 is an abundant number, since it is smaller than the sum of its proper divisors (77749005660).

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

43193891940 is a wasteful number, since it uses less digits than its factorization.

43193891940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719898211 (or 719898209 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 51.

The spelling of 43193891940 in words is "forty-three billion, one hundred ninety-three million, eight hundred ninety-one thousand, nine hundred forty".