420218422 has 16 divisors (see below), whose sum is σ = 680217552. Its totient is φ = 193546080.

The previous prime is 420218419. The next prime is 420218429. The reversal of 420218422 is 224812024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420218429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3693 + ... + 29224.

It is an arithmetic number, because the mean of its divisors is an integer number (42513597).

Almost surely, 2^420218422 is an apocalyptic number.

420218422 is a deficient number, since it is larger than the sum of its proper divisors (259999130).

420218422 is a wasteful number, since it uses less digits than its factorization.

420218422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33423.

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 420218422 is about 20499.2297904092. The cubic root of 420218422 is about 749.0170364211.

The spelling of 420218422 in words is "four hundred twenty million, two hundred eighteen thousand, four hundred twenty-two".