1140042439 has 2 divisors, whose sum is σ = 1140042440. Its totient is φ = 1140042438.

The previous prime is 1140042413. The next prime is 1140042487. The reversal of 1140042439 is 9342400411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1140042439 - 2⁹ = 1140041927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1140042139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570021219 + 570021220.

It is an arithmetic number, because the mean of its divisors is an integer number (570021220).

Almost surely, 2^1140042439 is an apocalyptic number.

1140042439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1140042439 is an equidigital number, since it uses as much as digits as its factorization.

1140042439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1140042439 is about 33764.5144937699. The cubic root of 1140042439 is about 1044.6568897151.

The spelling of 1140042439 in words is "one billion, one hundred forty million, forty-two thousand, four hundred thirty-nine".