385269305 has 4 divisors (see below), whose sum is σ = 462323172. Its totient is φ = 308215440.

The previous prime is 385269301. The next prime is 385269323. The reversal of 385269305 is 503962583.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 134490409 + 250778896 = 11597^2 + 15836^2 .

It is not a de Polignac number, because 385269305 - 2² = 385269301 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (385269301) 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 in 3 ways as a sum of consecutive naturals, for example, 38526926 + ... + 38526935.

It is an arithmetic number, because the mean of its divisors is an integer number (115580793).

Almost surely, 2^385269305 is an apocalyptic number.

It is an amenable number.

385269305 is a deficient number, since it is larger than the sum of its proper divisors (77053867).

385269305 is an equidigital number, since it uses as much as digits as its factorization.

385269305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77053866.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 385269305 is about 19628.2781975394. The cubic root of 385269305 is about 727.6482175384.

The spelling of 385269305 in words is "three hundred eighty-five million, two hundred sixty-nine thousand, three hundred five".