404340424403 has 2 divisors, whose sum is σ = 404340424404. Its totient is φ = 404340424402.

The previous prime is 404340424393. The next prime is 404340424417. The reversal of 404340424403 is 304424043404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404340424403 - 2⁴ = 404340424387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 404340424403.

It is not a weakly prime, because it can be changed into another prime (404340424483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202170212201 + 202170212202.

It is an arithmetic number, because the mean of its divisors is an integer number (202170212202).

Almost surely, 2^404340424403 is an apocalyptic number.

404340424403 is a deficient number, since it is larger than the sum of its proper divisors (1).

404340424403 is an equidigital number, since it uses as much as digits as its factorization.

404340424403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 404340424403 its reverse (304424043404), we get a palindrome (708764467807).

The spelling of 404340424403 in words is "four hundred four billion, three hundred forty million, four hundred twenty-four thousand, four hundred three".