1942351393 has 2 divisors, whose sum is σ = 1942351394. Its totient is φ = 1942351392.

The previous prime is 1942351381. The next prime is 1942351417. The reversal of 1942351393 is 3931532491.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1621833984 + 320517409 = 40272^2 + 17903^2 .

It is a cyclic number.

It is not a de Polignac number, because 1942351393 - 2²¹ = 1940254241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1942351193) 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, 971175696 + 971175697.

It is an arithmetic number, because the mean of its divisors is an integer number (971175697).

Almost surely, 2^1942351393 is an apocalyptic number.

It is an amenable number.

1942351393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1942351393 is an equidigital number, since it uses as much as digits as its factorization.

1942351393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 40.

The square root of 1942351393 is about 44072.1158216848. The cubic root of 1942351393 is about 1247.6973915064.

The spelling of 1942351393 in words is "one billion, nine hundred forty-two million, three hundred fifty-one thousand, three hundred ninety-three".