1042995839 has 2 divisors, whose sum is σ = 1042995840. Its totient is φ = 1042995838.

The previous prime is 1042995799. The next prime is 1042995853. The reversal of 1042995839 is 9385992401.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1042995839 - 2²⁸ = 774560383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042995869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521497919 + 521497920.

It is an arithmetic number, because the mean of its divisors is an integer number (521497920).

Almost surely, 2^1042995839 is an apocalyptic number.

1042995839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042995839 is an equidigital number, since it uses as much as digits as its factorization.

1042995839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 50.

The square root of 1042995839 is about 32295.4461031273. The cubic root of 1042995839 is about 1014.1313117166.

The spelling of 1042995839 in words is "one billion, forty-two million, nine hundred ninety-five thousand, eight hundred thirty-nine".