43042039992 has 96 divisors (see below), whose sum is σ = 134470627200. Its totient is φ = 12182778432.

The previous prime is 43042039991. The next prime is 43042040123. The reversal of 43042039992 is 29993024034.

It is a happy number.

43042039992 is a `hidden beast` number, since 430 + 4 + 203 + 9 + 9 + 9 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43042039991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 345142 + ... + 452997.

It is an arithmetic number, because the mean of its divisors is an integer number (1400735700).

Almost surely, 2^43042039992 is an apocalyptic number.

43042039992 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

43042039992 is an abundant number, since it is smaller than the sum of its proper divisors (91428587208).

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

43042039992 is a wasteful number, since it uses less digits than its factorization.

43042039992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798265 (or 798258 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The spelling of 43042039992 in words is "forty-three billion, forty-two million, thirty-nine thousand, nine hundred ninety-two".