394959241 has 2 divisors, whose sum is σ = 394959242. Its totient is φ = 394959240.

The previous prime is 394959239. The next prime is 394959247. The reversal of 394959241 is 142959493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 302029641 + 92929600 = 17379^2 + 9640^2 .

It is a cyclic number.

It is not a de Polignac number, because 394959241 - 2¹ = 394959239 is a prime.

Together with 394959239, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 394959191 and 394959200.

It is not a weakly prime, because it can be changed into another prime (394959247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197479620 + 197479621.

It is an arithmetic number, because the mean of its divisors is an integer number (197479621).

Almost surely, 2^394959241 is an apocalyptic number.

It is an amenable number.

394959241 is a deficient number, since it is larger than the sum of its proper divisors (1).

394959241 is an equidigital number, since it uses as much as digits as its factorization.

394959241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 46.

The square root of 394959241 is about 19873.5814839701. The cubic root of 394959241 is about 733.6981542674.

It can be divided in two parts, 3949 and 59241, that added together give a triangular number (63190 = T₃₅₅).

The spelling of 394959241 in words is "three hundred ninety-four million, nine hundred fifty-nine thousand, two hundred forty-one".