404400000394 has 32 divisors (see below), whose sum is σ = 657266400000. Its totient is φ = 185503976064.

The previous prime is 404400000391. The next prime is 404400000401. The reversal of 404400000394 is 493000004404.

It is not an unprimeable number, because it can be changed into a prime (404400000391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4712382 + ... + 4797430.

It is an arithmetic number, because the mean of its divisors is an integer number (20539575000).

Almost surely, 2^404400000394 is an apocalyptic number.

404400000394 is a deficient number, since it is larger than the sum of its proper divisors (252866399606).

404400000394 is a wasteful number, since it uses less digits than its factorization.

404400000394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86182.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 404400000394 its reverse (493000004404), we get a palindrome (897400004798).

The spelling of 404400000394 in words is "four hundred four billion, four hundred million, three hundred ninety-four", and thus it is an aban number.