385849291 has 4 divisors (see below), whose sum is σ = 386003800. Its totient is φ = 385694784.

The previous prime is 385849271. The next prime is 385849297. The reversal of 385849291 is 192948583.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385849291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385849297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73446 + ... + 78523.

It is an arithmetic number, because the mean of its divisors is an integer number (96500950).

Almost surely, 2^385849291 is an apocalyptic number.

385849291 is a deficient number, since it is larger than the sum of its proper divisors (154509).

385849291 is a wasteful number, since it uses less digits than its factorization.

385849291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154508.

The product of its digits is 622080, while the sum is 49.

The square root of 385849291 is about 19643.0468868758. The cubic root of 385849291 is about 728.0131693417.

It can be divided in two parts, 3858492 and 91, that added together give a palindrome (3858583).

The spelling of 385849291 in words is "three hundred eighty-five million, eight hundred forty-nine thousand, two hundred ninety-one".