394495741 has 2 divisors, whose sum is σ = 394495742. Its totient is φ = 394495740.

The previous prime is 394495733. The next prime is 394495757. The reversal of 394495741 is 147594493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 393863716 + 632025 = 19846^2 + 795^2 .

It is a cyclic number.

It is not a de Polignac number, because 394495741 - 2³ = 394495733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 394495691 and 394495700.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394495711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197247870 + 197247871.

It is an arithmetic number, because the mean of its divisors is an integer number (197247871).

Almost surely, 2^394495741 is an apocalyptic number.

It is an amenable number.

394495741 is a deficient number, since it is larger than the sum of its proper divisors (1).

394495741 is an equidigital number, since it uses as much as digits as its factorization.

394495741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 46.

The square root of 394495741 is about 19861.9168510997. The cubic root of 394495741 is about 733.4110341681.

The spelling of 394495741 in words is "three hundred ninety-four million, four hundred ninety-five thousand, seven hundred forty-one".