238452439 has 2 divisors, whose sum is σ = 238452440. Its totient is φ = 238452438.

The previous prime is 238452419. The next prime is 238452463. The reversal of 238452439 is 934254832.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 238452439 - 2⁵ = 238452407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238452419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119226219 + 119226220.

It is an arithmetic number, because the mean of its divisors is an integer number (119226220).

Almost surely, 2^238452439 is an apocalyptic number.

238452439 is a deficient number, since it is larger than the sum of its proper divisors (1).

238452439 is an equidigital number, since it uses as much as digits as its factorization.

238452439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 40.

The square root of 238452439 is about 15441.9052904750. The cubic root of 238452439 is about 620.1078887863.

The spelling of 238452439 in words is "two hundred thirty-eight million, four hundred fifty-two thousand, four hundred thirty-nine".