394417390941 has 18 divisors (see below), whose sum is σ = 662728541982. Its totient is φ = 225381366000.

The previous prime is 394417390937. The next prime is 394417390943. The reversal of 394417390941 is 149093714493.

394417390941 is a `hidden beast` number, since 3 + 9 + 441 + 73 + 90 + 9 + 41 = 666.

It can be written as a sum of positive squares in only one way, i.e., 339108228900 + 55309162041 = 582330^2 + 235179^2 .

It is not a de Polignac number, because 394417390941 - 2² = 394417390937 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394417390943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 447184810 + ... + 447185691.

Almost surely, 2^394417390941 is an apocalyptic number.

It is an amenable number.

394417390941 is a deficient number, since it is larger than the sum of its proper divisors (268311151041).

394417390941 is a wasteful number, since it uses less digits than its factorization.

394417390941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894370521 (or 894370511 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 394417390941 in words is "three hundred ninety-four billion, four hundred seventeen million, three hundred ninety thousand, nine hundred forty-one".