2540630269 has 2 divisors, whose sum is σ = 2540630270. Its totient is φ = 2540630268.

The previous prime is 2540630227. The next prime is 2540630291. The reversal of 2540630269 is 9620360452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2028151225 + 512479044 = 45035^2 + 22638^2 .

It is a cyclic number.

It is not a de Polignac number, because 2540630269 - 2⁹ = 2540629757 is a prime.

It is a super-2 number, since 2×2540630269² = 12909604327518024722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2540630299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270315134 + 1270315135.

It is an arithmetic number, because the mean of its divisors is an integer number (1270315135).

Almost surely, 2^2540630269 is an apocalyptic number.

It is an amenable number.

2540630269 is a deficient number, since it is larger than the sum of its proper divisors (1).

2540630269 is an equidigital number, since it uses as much as digits as its factorization.

2540630269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 2540630269 is about 50404.6651511544. The cubic root of 2540630269 is about 1364.5218340633.

The spelling of 2540630269 in words is "two billion, five hundred forty million, six hundred thirty thousand, two hundred sixty-nine".