2020203439 has 4 divisors (see below), whose sum is σ = 2023532224. Its totient is φ = 2016874656.

The previous prime is 2020203431. The next prime is 2020203461. The reversal of 2020203439 is 9343020202.

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

It is a cyclic number.

It is not a de Polignac number, because 2020203439 - 2³ = 2020203431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020203431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1663482 + ... + 1664695.

It is an arithmetic number, because the mean of its divisors is an integer number (505883056).

Almost surely, 2^2020203439 is an apocalyptic number.

2020203439 is a deficient number, since it is larger than the sum of its proper divisors (3328785).

2020203439 is an equidigital number, since it uses as much as digits as its factorization.

2020203439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3328784.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 2020203439 is about 44946.6732806778. The cubic root of 2020203439 is about 1264.1493005074.

The spelling of 2020203439 in words is "two billion, twenty million, two hundred three thousand, four hundred thirty-nine".