1838549941 has 2 divisors, whose sum is σ = 1838549942. Its totient is φ = 1838549940.

The previous prime is 1838549893. The next prime is 1838549957. The reversal of 1838549941 is 1499458381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 966588100 + 871961841 = 31090^2 + 29529^2 .

It is a cyclic number.

It is not a de Polignac number, because 1838549941 - 2²⁵ = 1804995509 is a prime.

It is a super-3 number, since 3×1838549941³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1838549341) 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, 919274970 + 919274971.

It is an arithmetic number, because the mean of its divisors is an integer number (919274971).

Almost surely, 2^1838549941 is an apocalyptic number.

It is an amenable number.

1838549941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1838549941 is an equidigital number, since it uses as much as digits as its factorization.

1838549941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 52.

The square root of 1838549941 is about 42878.3155102903. The cubic root of 1838549941 is about 1225.0631517631.

The spelling of 1838549941 in words is "one billion, eight hundred thirty-eight million, five hundred forty-nine thousand, nine hundred forty-one".