420223822 has 8 divisors (see below), whose sum is σ = 632363472. Its totient is φ = 209436000.

The previous prime is 420223819. The next prime is 420223841. The reversal of 420223822 is 228322024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 337179 + ... + 338422.

It is an arithmetic number, because the mean of its divisors is an integer number (79045434).

Almost surely, 2^420223822 is an apocalyptic number.

420223822 is a deficient number, since it is larger than the sum of its proper divisors (212139650).

420223822 is a wasteful number, since it uses less digits than its factorization.

420223822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675914.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 420223822 is about 20499.3615022517. The cubic root of 420223822 is about 749.0202448118.

Adding to 420223822 its reverse (228322024), we get a palindrome (648545846).

The spelling of 420223822 in words is "four hundred twenty million, two hundred twenty-three thousand, eight hundred twenty-two".