1440000269 has 2 divisors, whose sum is σ = 1440000270. Its totient is φ = 1440000268.

The previous prime is 1440000259. The next prime is 1440000271. The reversal of 1440000269 is 9620000441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 955428100 + 484572169 = 30910^2 + 22013^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1440000269 is a prime.

It is a super-2 number, since 2×1440000269² = 4147201549440144722, which contains 22 as substring.

Together with 1440000271, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1440000209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720000134 + 720000135.

It is an arithmetic number, because the mean of its divisors is an integer number (720000135).

Almost surely, 2^1440000269 is an apocalyptic number.

It is an amenable number.

1440000269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440000269 is an equidigital number, since it uses as much as digits as its factorization.

1440000269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1440000269 is about 37947.3354664066. The cubic root of 1440000269 is about 1129.2433049735.

The spelling of 1440000269 in words is "one billion, four hundred forty million, two hundred sixty-nine", and thus it is an aban number.