385478341 has 2 divisors, whose sum is σ = 385478342. Its totient is φ = 385478340.

The previous prime is 385478339. The next prime is 385478449. The reversal of 385478341 is 143874583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 374229025 + 11249316 = 19345^2 + 3354^2 .

It is a cyclic number.

It is not a de Polignac number, because 385478341 - 2¹ = 385478339 is a prime.

It is a super-2 number, since 2×385478341² = 297187102760224562, which contains 22 as substring.

Together with 385478339, it forms a pair of twin primes.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385478741) 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, 192739170 + 192739171.

It is an arithmetic number, because the mean of its divisors is an integer number (192739171).

Almost surely, 2^385478341 is an apocalyptic number.

It is an amenable number.

385478341 is a deficient number, since it is larger than the sum of its proper divisors (1).

385478341 is an equidigital number, since it uses as much as digits as its factorization.

385478341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 43.

The square root of 385478341 is about 19633.6023439409. The cubic root of 385478341 is about 727.7797940485.

The spelling of 385478341 in words is "three hundred eighty-five million, four hundred seventy-eight thousand, three hundred forty-one".