2040020413 has 4 divisors (see below), whose sum is σ = 2040409980. Its totient is φ = 2039630848.

The previous prime is 2040020407. The next prime is 2040020449. The reversal of 2040020413 is 3140200402.

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

It can be written as a sum of positive squares in 2 ways, for example, as 225090009 + 1814930404 = 15003^2 + 42602^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2040020413 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 (2040020453) 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, 186820 + ... + 197437.

It is an arithmetic number, because the mean of its divisors is an integer number (510102495).

Almost surely, 2^2040020413 is an apocalyptic number.

It is an amenable number.

2040020413 is a deficient number, since it is larger than the sum of its proper divisors (389567).

2040020413 is an equidigital number, since it uses as much as digits as its factorization.

2040020413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389566.

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

The square root of 2040020413 is about 45166.5851376878. The cubic root of 2040020413 is about 1268.2693713074.

Adding to 2040020413 its reverse (3140200402), we get a palindrome (5180220815).

The spelling of 2040020413 in words is "two billion, forty million, twenty thousand, four hundred thirteen".