2540000269 has 2 divisors, whose sum is σ = 2540000270. Its totient is φ = 2540000268.

The previous prime is 2540000261. The next prime is 2540000297. The reversal of 2540000269 is 9620000452.

It is an a-pointer prime, because the next prime (2540000297) can be obtained adding 2540000269 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1963376100 + 576624169 = 44310^2 + 24013^2 .

It is a cyclic number.

It is not a de Polignac number, because 2540000269 - 2³ = 2540000261 is a prime.

It is a super-2 number, since 2×2540000269² = 12903202733040144722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2540000261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270000134 + 1270000135.

It is an arithmetic number, because the mean of its divisors is an integer number (1270000135).

Almost surely, 2^2540000269 is an apocalyptic number.

It is an amenable number.

2540000269 is a deficient number, since it is larger than the sum of its proper divisors (1).

2540000269 is an equidigital number, since it uses as much as digits as its factorization.

2540000269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 2540000269 is about 50398.4153421514. The cubic root of 2540000269 is about 1364.4090379287.

The spelling of 2540000269 in words is "two billion, five hundred forty million, two hundred sixty-nine", and thus it is an aban number.