420043222 has 8 divisors (see below), whose sum is σ = 663226200. Its totient is φ = 198967824.

The previous prime is 420043219. The next prime is 420043223. The reversal of 420043222 is 222340024.

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

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 420043222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420043223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5526847 + ... + 5526922.

It is an arithmetic number, because the mean of its divisors is an integer number (82903275).

Almost surely, 2^420043222 is an apocalyptic number.

420043222 is a deficient number, since it is larger than the sum of its proper divisors (243182978).

420043222 is a wasteful number, since it uses less digits than its factorization.

420043222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11053790.

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

The square root of 420043222 is about 20494.9560136147. The cubic root of 420043222 is about 748.9129270504.

Adding to 420043222 its reverse (222340024), we get a palindrome (642383246).

The spelling of 420043222 in words is "four hundred twenty million, forty-three thousand, two hundred twenty-two".