2020420406 has 16 divisors (see below), whose sum is σ = 3092346720. Its totient is φ = 989767680.

The previous prime is 2020420379. The next prime is 2020420421. The reversal of 2020420406 is 6040240202.

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 in 7 ways as a sum of consecutive naturals, for example, 866 + ... + 63573.

It is an arithmetic number, because the mean of its divisors is an integer number (193271670).

Almost surely, 2^2020420406 is an apocalyptic number.

2020420406 is a deficient number, since it is larger than the sum of its proper divisors (1071926314).

2020420406 is a wasteful number, since it uses less digits than its factorization.

2020420406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64759.

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

The square root of 2020420406 is about 44949.0868205351. The cubic root of 2020420406 is about 1264.1945548380.

Adding to 2020420406 its reverse (6040240202), we get a palindrome (8060660608).

The spelling of 2020420406 in words is "two billion, twenty million, four hundred twenty thousand, four hundred six".