2740203709 has 2 divisors, whose sum is σ = 2740203710. Its totient is φ = 2740203708.

The previous prime is 2740203679. The next prime is 2740203751. The reversal of 2740203709 is 9073020472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1864339684 + 875864025 = 43178^2 + 29595^2 .

It is a cyclic number.

It is not a de Polignac number, because 2740203709 - 2⁹ = 2740203197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2740203209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1370101854 + 1370101855.

It is an arithmetic number, because the mean of its divisors is an integer number (1370101855).

Almost surely, 2^2740203709 is an apocalyptic number.

It is an amenable number.

2740203709 is a deficient number, since it is larger than the sum of its proper divisors (1).

2740203709 is an equidigital number, since it uses as much as digits as its factorization.

2740203709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 2740203709 is about 52346.9551072457. The cubic root of 2740203709 is about 1399.3540743105.

It can be divided in two parts, 274020 and 3709, that added together give a square (277729 = 527²).

The spelling of 2740203709 in words is "two billion, seven hundred forty million, two hundred three thousand, seven hundred nine".