42040305056 has 12 divisors (see below), whose sum is σ = 82766850642. Its totient is φ = 21020152512.

The previous prime is 42040305053. The next prime is 42040305071. The reversal of 42040305056 is 65050304024.

It can be written as a sum of positive squares in only one way, i.e., 40354381456 + 1685923600 = 200884^2 + 41060^2 .

It is not an unprimeable number, because it can be changed into a prime (42040305053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656879735 + ... + 656879798.

Almost surely, 2^42040305056 is an apocalyptic number.

It is an amenable number.

42040305056 is a deficient number, since it is larger than the sum of its proper divisors (40726545586).

42040305056 is a wasteful number, since it uses less digits than its factorization.

42040305056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313759543 (or 1313759535 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The spelling of 42040305056 in words is "forty-two billion, forty million, three hundred five thousand, fifty-six".