420320224 has 24 divisors (see below), whose sum is σ = 834835680. Its totient is φ = 208298496.

The previous prime is 420320221. The next prime is 420320231. The reversal of 420320224 is 422023024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420320221) 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 3 ways as a sum of consecutive naturals, for example, 54504 + ... + 61735.

It is an arithmetic number, because the mean of its divisors is an integer number (34784820).

Almost surely, 2^420320224 is an apocalyptic number.

It is an amenable number.

420320224 is a deficient number, since it is larger than the sum of its proper divisors (414515456).

420320224 is a wasteful number, since it uses less digits than its factorization.

420320224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116362 (or 116354 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 420320224 is about 20501.7127089421. The cubic root of 420320224 is about 749.0775170915.

Adding to 420320224 its reverse (422023024), we get a palindrome (842343248).

The spelling of 420320224 in words is "four hundred twenty million, three hundred twenty thousand, two hundred twenty-four".