42430844090 has 16 divisors (see below), whose sum is σ = 78439723272. Its totient is φ = 16513625664.

The previous prime is 42430844081. The next prime is 42430844143. The reversal of 42430844090 is 9044803424.

It can be written as a sum of positive squares in 4 ways, for example, as 42400163569 + 30680521 = 205913^2 + 5539^2 .

It is a Curzon number.

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, 57338609 + ... + 57339348.

Almost surely, 2^42430844090 is an apocalyptic number.

42430844090 is a deficient number, since it is larger than the sum of its proper divisors (36008879182).

42430844090 is a wasteful number, since it uses less digits than its factorization.

42430844090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114678001.

The product of its (nonzero) digits is 110592, while the sum is 38.

The spelling of 42430844090 in words is "forty-two billion, four hundred thirty million, eight hundred forty-four thousand, ninety".