42043434405 has 32 divisors (see below), whose sum is σ = 76889616384. Its totient is φ = 19217307456.

The previous prime is 42043434401. The next prime is 42043434431. The reversal of 42043434405 is 50443434024.

It is not a de Polignac number, because 42043434405 - 2² = 42043434401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42043434401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 933822 + ... + 977808.

It is an arithmetic number, because the mean of its divisors is an integer number (2402800512).

Almost surely, 2^42043434405 is an apocalyptic number.

It is an amenable number.

42043434405 is a deficient number, since it is larger than the sum of its proper divisors (34846181979).

42043434405 is a wasteful number, since it uses less digits than its factorization.

42043434405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53105.

The product of its (nonzero) digits is 92160, while the sum is 33.

Adding to 42043434405 its reverse (50443434024), we get a palindrome (92486868429).

The spelling of 42043434405 in words is "forty-two billion, forty-three million, four hundred thirty-four thousand, four hundred five".