394244041 has 2 divisors, whose sum is σ = 394244042. Its totient is φ = 394244040.

The previous prime is 394244029. The next prime is 394244111. The reversal of 394244041 is 140442493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 390260025 + 3984016 = 19755^2 + 1996^2 .

It is a cyclic number.

It is not a de Polignac number, because 394244041 - 2²¹ = 392146889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 394243994 and 394244012.

It is not a weakly prime, because it can be changed into another prime (394244141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197122020 + 197122021.

It is an arithmetic number, because the mean of its divisors is an integer number (197122021).

Almost surely, 2^394244041 is an apocalyptic number.

It is an amenable number.

394244041 is a deficient number, since it is larger than the sum of its proper divisors (1).

394244041 is an equidigital number, since it uses as much as digits as its factorization.

394244041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 394244041 is about 19855.5795936558. The cubic root of 394244041 is about 733.2550216421.

The spelling of 394244041 in words is "three hundred ninety-four million, two hundred forty-four thousand, forty-one".