384228841 has 2 divisors, whose sum is σ = 384228842. Its totient is φ = 384228840.

The previous prime is 384228809. The next prime is 384228847. The reversal of 384228841 is 148822483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 384003216 + 225625 = 19596^2 + 475^2 .

It is an emirp because it is prime and its reverse (148822483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 384228841 - 2⁵ = 384228809 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 384228794 and 384228803.

It is not a weakly prime, because it can be changed into another prime (384228847) 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, 192114420 + 192114421.

It is an arithmetic number, because the mean of its divisors is an integer number (192114421).

Almost surely, 2^384228841 is an apocalyptic number.

It is an amenable number.

384228841 is a deficient number, since it is larger than the sum of its proper divisors (1).

384228841 is an equidigital number, since it uses as much as digits as its factorization.

384228841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 98304, while the sum is 40.

The square root of 384228841 is about 19601.7560692913. The cubic root of 384228841 is about 726.9925944653.

The spelling of 384228841 in words is "three hundred eighty-four million, two hundred twenty-eight thousand, eight hundred forty-one".