404023123404 has 36 divisors (see below), whose sum is σ = 1075032289240. Its totient is φ = 127586249280.

The previous prime is 404023123397. The next prime is 404023123433. The reversal of 404023123404 is 404321320404.

It is a happy number.

404023123404 is a `hidden beast` number, since 4 + 0 + 4 + 0 + 2 + 312 + 340 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 295337857 + ... + 295339224.

Almost surely, 2^404023123404 is an apocalyptic number.

It is an amenable number.

404023123404 is an abundant number, since it is smaller than the sum of its proper divisors (671009165836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404023123404 is a wasteful number, since it uses less digits than its factorization.

404023123404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590677110 (or 590677105 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 404023123404 its reverse (404321320404), we get a palindrome (808344443808).

The spelling of 404023123404 in words is "four hundred four billion, twenty-three million, one hundred twenty-three thousand, four hundred four".