404021332405331 has 8 divisors (see below), whose sum is σ = 405282782606784. Its totient is φ = 402760128240360.

The previous prime is 404021332405321. The next prime is 404021332405351. The reversal of 404021332405331 is 133504233120404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 404021332405331 - 2²² = 404021328211027 is a prime.

It is a super-2 number, since 2×404021332405331² (a number of 30 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 = 404021332405291 and 404021332405300.

It is not an unprimeable number, because it can be changed into a prime (404021332405321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58219481 + ... + 64788506.

It is an arithmetic number, because the mean of its divisors is an integer number (50660347825848).

Almost surely, 2^{404021332405331} is an apocalyptic number.

404021332405331 is a deficient number, since it is larger than the sum of its proper divisors (1261450201453).

404021332405331 is a wasteful number, since it uses less digits than its factorization.

404021332405331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123018241.

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 404021332405331 its reverse (133504233120404), we get a palindrome (537525565525735).

The spelling of 404021332405331 in words is "four hundred four trillion, twenty-one billion, three hundred thirty-two million, four hundred five thousand, three hundred thirty-one".