238189049 has 24 divisors (see below), whose sum is σ = 289319688. Its totient is φ = 195336960.

The previous prime is 238189043. The next prime is 238189051. The reversal of 238189049 is 940981832.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 33269824 + 204919225 = 5768^2 + 14315^2 .

It is not a de Polignac number, because 238189049 - 2⁸ = 238188793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238189043) 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 in 23 ways as a sum of consecutive naturals, for example, 105359 + ... + 107595.

It is an arithmetic number, because the mean of its divisors is an integer number (12054987).

Almost surely, 2^238189049 is an apocalyptic number.

It is an amenable number.

238189049 is a deficient number, since it is larger than the sum of its proper divisors (51130639).

238189049 is a wasteful number, since it uses less digits than its factorization.

238189049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345 (or 2338 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 238189049 is about 15433.3745175836. The cubic root of 238189049 is about 619.8794849006.

The spelling of 238189049 in words is "two hundred thirty-eight million, one hundred eighty-nine thousand, forty-nine".