43420020202 has 16 divisors (see below), whose sum is σ = 70187454792. Its totient is φ = 20026460160.

The previous prime is 43420020179. The next prime is 43420020209. The reversal of 43420020202 is 20202002434.

It can be written as a sum of positive squares in 4 ways, for example, as 26454697201 + 16965323001 = 162649^2 + 130251^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 43420020202.

It is not an unprimeable number, because it can be changed into a prime (43420020209) by changing a digit.

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, 525303 + ... + 602314.

Almost surely, 2^43420020202 is an apocalyptic number.

43420020202 is a deficient number, since it is larger than the sum of its proper divisors (26767434590).

43420020202 is a wasteful number, since it uses less digits than its factorization.

43420020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129113.

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 43420020202 its reverse (20202002434), we get a palindrome (63622022636).

The spelling of 43420020202 in words is "forty-three billion, four hundred twenty million, twenty thousand, two hundred two".