2040340413 has 4 divisors (see below), whose sum is σ = 2720453888. Its totient is φ = 1360226940.

The previous prime is 2040340409. The next prime is 2040340427. The reversal of 2040340413 is 3140430402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2040340413 - 2² = 2040340409 is a prime.

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 2040340413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040340483) 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, 340056733 + ... + 340056738.

It is an arithmetic number, because the mean of its divisors is an integer number (680113472).

Almost surely, 2^2040340413 is an apocalyptic number.

It is an amenable number.

2040340413 is a deficient number, since it is larger than the sum of its proper divisors (680113475).

2040340413 is an equidigital number, since it uses as much as digits as its factorization.

2040340413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680113474.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2040340413 is about 45170.1274405995. The cubic root of 2040340413 is about 1268.3356819151.

Adding to 2040340413 its reverse (3140430402), we get a palindrome (5180770815).

The spelling of 2040340413 in words is "two billion, forty million, three hundred forty thousand, four hundred thirteen".