404202560423 has 2 divisors, whose sum is σ = 404202560424. Its totient is φ = 404202560422.

The previous prime is 404202560413. The next prime is 404202560527. The reversal of 404202560423 is 324065202404.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404202560423 - 2²⁴ = 404185783207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 404202560423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404202560413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202101280211 + 202101280212.

It is an arithmetic number, because the mean of its divisors is an integer number (202101280212).

Almost surely, 2^404202560423 is an apocalyptic number.

404202560423 is a deficient number, since it is larger than the sum of its proper divisors (1).

404202560423 is an equidigital number, since it uses as much as digits as its factorization.

404202560423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 404202560423 its reverse (324065202404), we get a palindrome (728267762827).

The spelling of 404202560423 in words is "four hundred four billion, two hundred two million, five hundred sixty thousand, four hundred twenty-three".