42520404204 has 36 divisors (see below), whose sum is σ = 107775033184. Its totient is φ = 14134843872.

The previous prime is 42520404161. The next prime is 42520404211. The reversal of 42520404204 is 40240402524.

42520404204 is a `hidden beast` number, since 4 + 2 + 52 + 0 + 404 + 204 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1595947 + ... + 1622370.

Almost surely, 2^42520404204 is an apocalyptic number.

It is an amenable number.

42520404204 is an abundant number, since it is smaller than the sum of its proper divisors (65254628980).

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

42520404204 is a wasteful number, since it uses less digits than its factorization.

42520404204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3218694 (or 3218689 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

Adding to 42520404204 its reverse (40240402524), we get a palindrome (82760806728).

The spelling of 42520404204 in words is "forty-two billion, five hundred twenty million, four hundred four thousand, two hundred four".