1040238569 has 2 divisors, whose sum is σ = 1040238570. Its totient is φ = 1040238568.

The previous prime is 1040238559. The next prime is 1040238571. The reversal of 1040238569 is 9658320401.

It is a happy number.

1040238569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 877344400 + 162894169 = 29620^2 + 12763^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040238569 - 2⁴ = 1040238553 is a prime.

It is a super-2 number, since 2×1040238569² = 2164192560870335522, which contains 22 as substring.

Together with 1040238571, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1040238559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520119284 + 520119285.

It is an arithmetic number, because the mean of its divisors is an integer number (520119285).

Almost surely, 2^1040238569 is an apocalyptic number.

It is an amenable number.

1040238569 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040238569 is an equidigital number, since it uses as much as digits as its factorization.

1040238569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1040238569 is about 32252.7296364199. The cubic root of 1040238569 is about 1013.2368685465.

The spelling of 1040238569 in words is "one billion, forty million, two hundred thirty-eight thousand, five hundred sixty-nine".