238842223 has 2 divisors, whose sum is σ = 238842224. Its totient is φ = 238842222.

The previous prime is 238842199. The next prime is 238842251. The reversal of 238842223 is 322248832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 238842223 - 2²¹ = 236745071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238842283) 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, 119421111 + 119421112.

It is an arithmetic number, because the mean of its divisors is an integer number (119421112).

Almost surely, 2^238842223 is an apocalyptic number.

238842223 is a deficient number, since it is larger than the sum of its proper divisors (1).

238842223 is an equidigital number, since it uses as much as digits as its factorization.

238842223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36864, while the sum is 34.

The square root of 238842223 is about 15454.5211184300. The cubic root of 238842223 is about 620.4455893243.

The spelling of 238842223 in words is "two hundred thirty-eight million, eight hundred forty-two thousand, two hundred twenty-three".