2238197393 has 2 divisors, whose sum is σ = 2238197394. Its totient is φ = 2238197392.

The previous prime is 2238197383. The next prime is 2238197399. The reversal of 2238197393 is 3937918322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2146190929 + 92006464 = 46327^2 + 9592^2 .

It is a cyclic number.

It is not a de Polignac number, because 2238197393 - 2⁶ = 2238197329 is a prime.

It is not a weakly prime, because it can be changed into another prime (2238197399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1119098696 + 1119098697.

It is an arithmetic number, because the mean of its divisors is an integer number (1119098697).

Almost surely, 2^2238197393 is an apocalyptic number.

It is an amenable number.

2238197393 is a deficient number, since it is larger than the sum of its proper divisors (1).

2238197393 is an equidigital number, since it uses as much as digits as its factorization.

2238197393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 47.

The square root of 2238197393 is about 47309.5909198124. The cubic root of 2238197393 is about 1308.0754508952.

The spelling of 2238197393 in words is "two billion, two hundred thirty-eight million, one hundred ninety-seven thousand, three hundred ninety-three".