1938528041 has 2 divisors, whose sum is σ = 1938528042. Its totient is φ = 1938528040.

The previous prime is 1938527993. The next prime is 1938528043. The reversal of 1938528041 is 1408258391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1547635600 + 390892441 = 39340^2 + 19771^2 .

It is a cyclic number.

It is not a de Polignac number, because 1938528041 - 2⁶ = 1938527977 is a prime.

Together with 1938528043, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1938528041.

It is not a weakly prime, because it can be changed into another prime (1938528043) 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, 969264020 + 969264021.

It is an arithmetic number, because the mean of its divisors is an integer number (969264021).

Almost surely, 2^1938528041 is an apocalyptic number.

It is an amenable number.

1938528041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1938528041 is an equidigital number, since it uses as much as digits as its factorization.

1938528041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 1938528041 is about 44028.7183665389. The cubic root of 1938528041 is about 1246.8781920224.

The spelling of 1938528041 in words is "one billion, nine hundred thirty-eight million, five hundred twenty-eight thousand, forty-one".