20434210202 has 24 divisors (see below), whose sum is σ = 36885120660. Its totient is φ = 8455534080.

The previous prime is 20434210177. The next prime is 20434210219. The reversal of 20434210202 is 20201243402.

It can be written as a sum of positive squares in 2 ways, for example, as 19645105921 + 789104281 = 140161^2 + 28091^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3592199 + ... + 3597882.

Almost surely, 2^20434210202 is an apocalyptic number.

20434210202 is a deficient number, since it is larger than the sum of its proper divisors (16450910458).

20434210202 is a wasteful number, since it uses less digits than its factorization.

20434210202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7190126 (or 7190119 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20434210202 its reverse (20201243402), we get a palindrome (40635453604).

The spelling of 20434210202 in words is "twenty billion, four hundred thirty-four million, two hundred ten thousand, two hundred two".