438740041 has 2 divisors, whose sum is σ = 438740042. Its totient is φ = 438740040.

The previous prime is 438740033. The next prime is 438740069. The reversal of 438740041 is 140047834.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 268828816 + 169911225 = 16396^2 + 13035^2 .

It is a cyclic number.

It is not a de Polignac number, because 438740041 - 2³ = 438740033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 438739985 and 438740012.

It is not a weakly prime, because it can be changed into another prime (438740011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219370020 + 219370021.

It is an arithmetic number, because the mean of its divisors is an integer number (219370021).

Almost surely, 2^438740041 is an apocalyptic number.

It is an amenable number.

438740041 is a deficient number, since it is larger than the sum of its proper divisors (1).

438740041 is an equidigital number, since it uses as much as digits as its factorization.

438740041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 438740041 is about 20946.1223380367. The cubic root of 438740041 is about 759.8638035028.

Adding to 438740041 its reverse (140047834), we get a palindrome (578787875).

The spelling of 438740041 in words is "four hundred thirty-eight million, seven hundred forty thousand, forty-one".