420204422 has 32 divisors (see below), whose sum is σ = 698556960. Its totient is φ = 187982080.

The previous prime is 420204401. The next prime is 420204427. The reversal of 420204422 is 224402024.

It is a junction number, because it is equal to n+sod(n) for n = 420204394 and 420204403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420204427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 620348 + ... + 621024.

It is an arithmetic number, because the mean of its divisors is an integer number (21829905).

Almost surely, 2^420204422 is an apocalyptic number.

420204422 is a deficient number, since it is larger than the sum of its proper divisors (278352538).

420204422 is a wasteful number, since it uses less digits than its factorization.

420204422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 420204422 is about 20498.8883113207. Note that the first 3 decimals coincide. The cubic root of 420204422 is about 749.0087182431.

Adding to 420204422 its reverse (224402024), we get a palindrome (644606446).

The spelling of 420204422 in words is "four hundred twenty million, two hundred four thousand, four hundred twenty-two".