422544405 has 8 divisors (see below), whose sum is σ = 676071072. Its totient is φ = 225357008.

The previous prime is 422544389. The next prime is 422544407. The reversal of 422544405 is 504445224.

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 422544405 - 2⁴ = 422544389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422544407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14084799 + ... + 14084828.

It is an arithmetic number, because the mean of its divisors is an integer number (84508884).

Almost surely, 2^422544405 is an apocalyptic number.

It is an amenable number.

422544405 is a deficient number, since it is larger than the sum of its proper divisors (253526667).

422544405 is a wasteful number, since it uses less digits than its factorization.

422544405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28169635.

The product of its (nonzero) digits is 25600, while the sum is 30.

The square root of 422544405 is about 20555.8849237876. The cubic root of 422544405 is about 750.3964748178.

Adding to 422544405 its reverse (504445224), we get a palindrome (926989629).

The spelling of 422544405 in words is "four hundred twenty-two million, five hundred forty-four thousand, four hundred five".