1942934089 has 2 divisors, whose sum is σ = 1942934090. Its totient is φ = 1942934088.

The previous prime is 1942934057. The next prime is 1942934171. The reversal of 1942934089 is 9804392491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1555513600 + 387420489 = 39440^2 + 19683^2 .

It is an emirp because it is prime and its reverse (9804392491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1942934089 - 2⁵ = 1942934057 is a prime.

It is not a weakly prime, because it can be changed into another prime (1942934689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 971467044 + 971467045.

It is an arithmetic number, because the mean of its divisors is an integer number (971467045).

Almost surely, 2^1942934089 is an apocalyptic number.

It is an amenable number.

1942934089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1942934089 is an equidigital number, since it uses as much as digits as its factorization.

1942934089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 1942934089 is about 44078.7260364907. The cubic root of 1942934089 is about 1247.8221467545.

The spelling of 1942934089 in words is "one billion, nine hundred forty-two million, nine hundred thirty-four thousand, eighty-nine".