394401575404 has 6 divisors (see below), whose sum is σ = 690202756964. Its totient is φ = 197200787700.

The previous prime is 394401575401. The next prime is 394401575459. The reversal of 394401575404 is 404575104493.

It is not an unprimeable number, because it can be changed into a prime (394401575401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49300196922 + ... + 49300196929.

Almost surely, 2^394401575404 is an apocalyptic number.

It is an amenable number.

394401575404 is a deficient number, since it is larger than the sum of its proper divisors (295801181560).

394401575404 is a wasteful number, since it uses less digits than its factorization.

394401575404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98600393855 (or 98600393853 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 46.

Adding to 394401575404 its reverse (404575104493), we get a palindrome (798976679897).

The spelling of 394401575404 in words is "three hundred ninety-four billion, four hundred one million, five hundred seventy-five thousand, four hundred four".