20002402440202 has 24 divisors (see below), whose sum is σ = 37586932060356. Its totient is φ = 7913038327488.

The previous prime is 20002402440197. The next prime is 20002402440203. The reversal of 20002402440202 is 20204420420002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14820182390601 + 5182220049601 = 3849699^2 + 2276449^2 .

It is a super-2 number, since 2×20002402440202² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20002402440203) 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 11 ways as a sum of consecutive naturals, for example, 7850235163 + ... + 7850237710.

Almost surely, 2^{20002402440202} is an apocalyptic number.

20002402440202 is a deficient number, since it is larger than the sum of its proper divisors (17584529620154).

20002402440202 is a wasteful number, since it uses less digits than its factorization.

20002402440202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15700472902 (or 15700472895 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 20002402440202 its reverse (20204420420002), we get a palindrome (40206822860204).

The spelling of 20002402440202 in words is "twenty trillion, two billion, four hundred two million, four hundred forty thousand, two hundred two".