1042639343 has 2 divisors, whose sum is σ = 1042639344. Its totient is φ = 1042639342.

The previous prime is 1042639313. The next prime is 1042639369. The reversal of 1042639343 is 3439362401.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042639343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1042639313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521319671 + 521319672.

It is an arithmetic number, because the mean of its divisors is an integer number (521319672).

Almost surely, 2^1042639343 is an apocalyptic number.

1042639343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042639343 is an equidigital number, since it uses as much as digits as its factorization.

1042639343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 35.

The square root of 1042639343 is about 32289.9263393400. The cubic root of 1042639343 is about 1014.0157551819.

The spelling of 1042639343 in words is "one billion, forty-two million, six hundred thirty-nine thousand, three hundred forty-three".