2540703439 has 2 divisors, whose sum is σ = 2540703440. Its totient is φ = 2540703438.

The previous prime is 2540703419. The next prime is 2540703463. The reversal of 2540703439 is 9343070452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2540703439 - 2¹⁷ = 2540572367 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2540703398 and 2540703407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2540703409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270351719 + 1270351720.

It is an arithmetic number, because the mean of its divisors is an integer number (1270351720).

Almost surely, 2^2540703439 is an apocalyptic number.

2540703439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2540703439 is an equidigital number, since it uses as much as digits as its factorization.

2540703439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 2540703439 is about 50405.3909716014. The cubic root of 2540703439 is about 1364.5349333200.

The spelling of 2540703439 in words is "two billion, five hundred forty million, seven hundred three thousand, four hundred thirty-nine".