2040420202 has 4 divisors (see below), whose sum is σ = 3060630306. Its totient is φ = 1020210100.

The previous prime is 2040420191. The next prime is 2040420233. The reversal of 2040420202 is 2020240402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2040419241 + 961 = 45171^2 + 31^2 .

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 as a sum of consecutive naturals, namely, 510105049 + ... + 510105052.

Almost surely, 2^2040420202 is an apocalyptic number.

2040420202 is a deficient number, since it is larger than the sum of its proper divisors (1020210104).

2040420202 is a wasteful number, since it uses less digits than its factorization.

2040420202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020210103.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 2040420202 is about 45171.0106373546. The cubic root of 2040420202 is about 1268.3522147636.

Adding to 2040420202 its reverse (2020240402), we get a palindrome (4060660604).

The spelling of 2040420202 in words is "two billion, forty million, four hundred twenty thousand, two hundred two".