404021424233 has 4 divisors (see below), whose sum is σ = 461738770560. Its totient is φ = 346304077908.

The previous prime is 404021424203. The next prime is 404021424259. The reversal of 404021424233 is 332424120404.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 404021424233 - 2⁸ = 404021423977 is a prime.

It is a super-2 number, since 2×404021424233² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404021424196 and 404021424205.

It is not an unprimeable number, because it can be changed into a prime (404021424203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28858673153 + ... + 28858673166.

It is an arithmetic number, because the mean of its divisors is an integer number (115434692640).

Almost surely, 2^404021424233 is an apocalyptic number.

It is an amenable number.

404021424233 is a deficient number, since it is larger than the sum of its proper divisors (57717346327).

404021424233 is an equidigital number, since it uses as much as digits as its factorization.

404021424233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57717346326.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 404021424233 its reverse (332424120404), we get a palindrome (736445544637).

The spelling of 404021424233 in words is "four hundred four billion, twenty-one million, four hundred twenty-four thousand, two hundred thirty-three".