238663441 has 2 divisors, whose sum is σ = 238663442. Its totient is φ = 238663440.

The previous prime is 238663423. The next prime is 238663471. The reversal of 238663441 is 144366832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151782400 + 86881041 = 12320^2 + 9321^2 .

It is a cyclic number.

It is not a de Polignac number, because 238663441 - 2⁵ = 238663409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 238663441.

It is not a weakly prime, because it can be changed into another prime (238663471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119331720 + 119331721.

It is an arithmetic number, because the mean of its divisors is an integer number (119331721).

Almost surely, 2^238663441 is an apocalyptic number.

It is an amenable number.

238663441 is a deficient number, since it is larger than the sum of its proper divisors (1).

238663441 is an equidigital number, since it uses as much as digits as its factorization.

238663441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 37.

The square root of 238663441 is about 15448.7359029792. The cubic root of 238663441 is about 620.2907420637.

The spelling of 238663441 in words is "two hundred thirty-eight million, six hundred sixty-three thousand, four hundred forty-one".