2040420043 has 4 divisors (see below), whose sum is σ = 2040543760. Its totient is φ = 2040296328.

The previous prime is 2040420037. The next prime is 2040420061. The reversal of 2040420043 is 3400240402.

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 2040420043 - 2¹³ = 2040411851 is a prime.

It is a super-2 number, since 2×2040420043² = 8326627903752243698, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2040420043.

It is not an unprimeable number, because it can be changed into a prime (2040420143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32463 + ... + 71656.

It is an arithmetic number, because the mean of its divisors is an integer number (510135940).

Almost surely, 2^2040420043 is an apocalyptic number.

2040420043 is a deficient number, since it is larger than the sum of its proper divisors (123717).

2040420043 is a wasteful number, since it uses less digits than its factorization.

2040420043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123716.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 2040420043 is about 45171.0088773762. The cubic root of 2040420043 is about 1268.3521818181.

Adding to 2040420043 its reverse (3400240402), we get a palindrome (5440660445).

The spelling of 2040420043 in words is "two billion, forty million, four hundred twenty thousand, forty-three".