404240334403 has 2 divisors, whose sum is σ = 404240334404. Its totient is φ = 404240334402.

The previous prime is 404240334401. The next prime is 404240334419. The reversal of 404240334403 is 304433042404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404240334403 - 2¹ = 404240334401 is a prime.

Together with 404240334401, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (404240334401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202120167201 + 202120167202.

It is an arithmetic number, because the mean of its divisors is an integer number (202120167202).

Almost surely, 2^404240334403 is an apocalyptic number.

404240334403 is a deficient number, since it is larger than the sum of its proper divisors (1).

404240334403 is an equidigital number, since it uses as much as digits as its factorization.

404240334403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 31.

Adding to 404240334403 its reverse (304433042404), we get a palindrome (708673376807).

The spelling of 404240334403 in words is "four hundred four billion, two hundred forty million, three hundred thirty-four thousand, four hundred three".