394234241 has 2 divisors, whose sum is σ = 394234242. Its totient is φ = 394234240.

The previous prime is 394234219. The next prime is 394234319. The reversal of 394234241 is 142432493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288864016 + 105370225 = 16996^2 + 10265^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-394234241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 394234198 and 394234207.

It is not a weakly prime, because it can be changed into another prime (394234201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197117120 + 197117121.

It is an arithmetic number, because the mean of its divisors is an integer number (197117121).

Almost surely, 2^394234241 is an apocalyptic number.

It is an amenable number.

394234241 is a deficient number, since it is larger than the sum of its proper divisors (1).

394234241 is an equidigital number, since it uses as much as digits as its factorization.

394234241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 32.

The square root of 394234241 is about 19855.3328101042. The cubic root of 394234241 is about 733.2489459140.

It can be divided in two parts, 3942 and 34241, that added together give a palindrome (38183).

The spelling of 394234241 in words is "three hundred ninety-four million, two hundred thirty-four thousand, two hundred forty-one".