2020403636 has 6 divisors (see below), whose sum is σ = 3535706370. Its totient is φ = 1010201816.

The previous prime is 2020403603. The next prime is 2020403647. The reversal of 2020403636 is 6363040202.

It can be written as a sum of positive squares in only one way, i.e., 1683460900 + 336942736 = 41030^2 + 18356^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 252550451 + ... + 252550458.

It is an arithmetic number, because the mean of its divisors is an integer number (589284395).

Almost surely, 2^2020403636 is an apocalyptic number.

It is an amenable number.

2020403636 is a deficient number, since it is larger than the sum of its proper divisors (1515302734).

2020403636 is a wasteful number, since it uses less digits than its factorization.

2020403636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505100913 (or 505100911 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 2020403636 is about 44948.9002757576. The cubic root of 2020403636 is about 1264.1910571169.

Adding to 2020403636 its reverse (6363040202), we get a palindrome (8383443838).

The spelling of 2020403636 in words is "two billion, twenty million, four hundred three thousand, six hundred thirty-six".