2020040431 has 4 divisors (see below), whose sum is σ = 2025315072. Its totient is φ = 2014765792.

The previous prime is 2020040417. The next prime is 2020040447. The reversal of 2020040431 is 1340400202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1340400202 = 2 ⋅670200101.

It is a cyclic number.

It is not a de Polignac number, because 2020040431 - 2⁹ = 2020039919 is a prime.

It is a super-2 number, since 2×2020040431² = 8161126685749331522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020040731) 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, 2636746 + ... + 2637511.

It is an arithmetic number, because the mean of its divisors is an integer number (506328768).

Almost surely, 2^2020040431 is an apocalyptic number.

2020040431 is a deficient number, since it is larger than the sum of its proper divisors (5274641).

2020040431 is an equidigital number, since it uses as much as digits as its factorization.

2020040431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5274640.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2020040431 is about 44944.8598952094. The cubic root of 2020040431 is about 1264.1152986527.

Adding to 2020040431 its reverse (1340400202), we get a palindrome (3360440633).

The spelling of 2020040431 in words is "two billion, twenty million, forty thousand, four hundred thirty-one".