404452040223321 has 24 divisors (see below), whose sum is σ = 606750987173760. Its totient is φ = 259424941278816.

The previous prime is 404452040223251. The next prime is 404452040223323. The reversal of 404452040223321 is 123322040254404.

404452040223321 is a `hidden beast` number, since 4 + 0 + 44 + 520 + 40 + 2 + 2 + 33 + 21 = 666.

It is not a de Polignac number, because 404452040223321 - 2¹⁵ = 404452040190553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (404452040223323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8102952970 + ... + 8103002883.

It is an arithmetic number, because the mean of its divisors is an integer number (25281291132240).

Almost surely, 2^{404452040223321} is an apocalyptic number.

It is an amenable number.

404452040223321 is a deficient number, since it is larger than the sum of its proper divisors (202298946950439).

404452040223321 is a wasteful number, since it uses less digits than its factorization.

404452040223321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16205955965 (or 16205955962 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 36.

Adding to 404452040223321 its reverse (123322040254404), we get a palindrome (527774080477725).

The spelling of 404452040223321 in words is "four hundred four trillion, four hundred fifty-two billion, forty million, two hundred twenty-three thousand, three hundred twenty-one".