238770439 has 2 divisors, whose sum is σ = 238770440. Its totient is φ = 238770438.

The previous prime is 238770407. The next prime is 238770449. The reversal of 238770439 is 934077832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238770439 - 2⁵ = 238770407 is a prime.

It is a super-2 number, since 2×238770439² = 114022645080505442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 238770395 and 238770404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238770449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119385219 + 119385220.

It is an arithmetic number, because the mean of its divisors is an integer number (119385220).

Almost surely, 2^238770439 is an apocalyptic number.

238770439 is a deficient number, since it is larger than the sum of its proper divisors (1).

238770439 is an equidigital number, since it uses as much as digits as its factorization.

238770439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 238770439 is about 15452.1985167160. The cubic root of 238770439 is about 620.3834248149.

The spelling of 238770439 in words is "two hundred thirty-eight million, seven hundred seventy thousand, four hundred thirty-nine".