2020420439 has 2 divisors, whose sum is σ = 2020420440. Its totient is φ = 2020420438.

The previous prime is 2020420433. The next prime is 2020420453. The reversal of 2020420439 is 9340240202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2020420439 - 2²⁴ = 2003643223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020420433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010210219 + 1010210220.

It is an arithmetic number, because the mean of its divisors is an integer number (1010210220).

Almost surely, 2^2020420439 is an apocalyptic number.

2020420439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020420439 is an equidigital number, since it uses as much as digits as its factorization.

2020420439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 2020420439 is about 44949.0871876171. The cubic root of 2020420439 is about 1264.1945617208.

The spelling of 2020420439 in words is "two billion, twenty million, four hundred twenty thousand, four hundred thirty-nine".