404021423133 has 6 divisors (see below), whose sum is σ = 583586500094. Its totient is φ = 269347615416.

The previous prime is 404021423093. The next prime is 404021423147. The reversal of 404021423133 is 331324120404.

404021423133 is a `hidden beast` number, since 404 + 0 + 21 + 4 + 231 + 3 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 340931035449 + 63090387684 = 583893^2 + 251178^2 .

It is not a de Polignac number, because 404021423133 - 2⁹ = 404021422621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404021423097 and 404021423106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404021423033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22445634610 + ... + 22445634627.

Almost surely, 2^404021423133 is an apocalyptic number.

It is an amenable number.

404021423133 is a deficient number, since it is larger than the sum of its proper divisors (179565076961).

404021423133 is a wasteful number, since it uses less digits than its factorization.

404021423133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44891269243 (or 44891269240 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 404021423133 its reverse (331324120404), we get a palindrome (735345543537).

The spelling of 404021423133 in words is "four hundred four billion, twenty-one million, four hundred twenty-three thousand, one hundred thirty-three".