388338241 has 2 divisors, whose sum is σ = 388338242. Its totient is φ = 388338240.

The previous prime is 388338227. The next prime is 388338257. The reversal of 388338241 is 142833883.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 314033841 + 74304400 = 17721^2 + 8620^2 .

It is a cyclic number.

It is not a de Polignac number, because 388338241 - 2⁷ = 388338113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 388338194 and 388338203.

It is not a weakly prime, because it can be changed into another prime (388338281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194169120 + 194169121.

It is an arithmetic number, because the mean of its divisors is an integer number (194169121).

Almost surely, 2^388338241 is an apocalyptic number.

It is an amenable number.

388338241 is a deficient number, since it is larger than the sum of its proper divisors (1).

388338241 is an equidigital number, since it uses as much as digits as its factorization.

388338241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 40.

The square root of 388338241 is about 19706.2995257862. The cubic root of 388338241 is about 729.5751834925.

It can be divided in two parts, 38833 and 8241, that added together give a palindrome (47074).

The spelling of 388338241 in words is "three hundred eighty-eight million, three hundred thirty-eight thousand, two hundred forty-one".