385814239 has 2 divisors, whose sum is σ = 385814240. Its totient is φ = 385814238.

The previous prime is 385814197. The next prime is 385814263. The reversal of 385814239 is 932418583.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 385814239 - 2¹¹ = 385812191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 385814195 and 385814204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385814279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192907119 + 192907120.

It is an arithmetic number, because the mean of its divisors is an integer number (192907120).

Almost surely, 2^385814239 is an apocalyptic number.

385814239 is a deficient number, since it is larger than the sum of its proper divisors (1).

385814239 is an equidigital number, since it uses as much as digits as its factorization.

385814239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 43.

The square root of 385814239 is about 19642.1546425029. The cubic root of 385814239 is about 727.9911235232.

The spelling of 385814239 in words is "three hundred eighty-five million, eight hundred fourteen thousand, two hundred thirty-nine".