385848261 has 6 divisors (see below), whose sum is σ = 557336390. Its totient is φ = 257232168.

The previous prime is 385848223. The next prime is 385848263. The reversal of 385848261 is 162848583.

385848261 is a `hidden beast` number, since 3 + 8 + 584 + 8 + 2 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 380016036 + 5832225 = 19494^2 + 2415^2 .

It is not a de Polignac number, because 385848261 - 2¹¹ = 385846213 is a prime.

It is a super-3 number, since 3×385848261³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385848263) 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 5 ways as a sum of consecutive naturals, for example, 21436006 + ... + 21436023.

Almost surely, 2^385848261 is an apocalyptic number.

It is an amenable number.

385848261 is a deficient number, since it is larger than the sum of its proper divisors (171488129).

385848261 is a wasteful number, since it uses less digits than its factorization.

385848261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42872035 (or 42872032 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 385848261 is about 19643.0206689297. The cubic root of 385848261 is about 728.0125215463.

The spelling of 385848261 in words is "three hundred eighty-five million, eight hundred forty-eight thousand, two hundred sixty-one".