404340055331 has 2 divisors, whose sum is σ = 404340055332. Its totient is φ = 404340055330.

The previous prime is 404340055297. The next prime is 404340055337. The reversal of 404340055331 is 133550043404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404340055331 - 2⁶ = 404340055267 is a prime.

It is a super-2 number, since 2×404340055331² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (404340055337) 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 as a sum of consecutive naturals, namely, 202170027665 + 202170027666.

It is an arithmetic number, because the mean of its divisors is an integer number (202170027666).

Almost surely, 2^404340055331 is an apocalyptic number.

404340055331 is a deficient number, since it is larger than the sum of its proper divisors (1).

404340055331 is an equidigital number, since it uses as much as digits as its factorization.

404340055331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 404340055331 its reverse (133550043404), we get a palindrome (537890098735).

The spelling of 404340055331 in words is "four hundred four billion, three hundred forty million, fifty-five thousand, three hundred thirty-one".