204220422 has 96 divisors (see below), whose sum is σ = 543808512. Its totient is φ = 54058752.

The previous prime is 204220411. The next prime is 204220463. The reversal of 204220422 is 224022402.

204220422 is a `hidden beast` number, since 20 + 4 + 220 + 422 = 666.

It is a super-3 number, since 3×204220422³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 204220395 and 204220404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 142803 + ... + 144225.

It is an arithmetic number, because the mean of its divisors is an integer number (5664672).

Almost surely, 2^204220422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204220422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271904256).

204220422 is an abundant number, since it is smaller than the sum of its proper divisors (339588090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204220422 is a wasteful number, since it uses less digits than its factorization.

204220422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522 (or 1519 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 204220422 is about 14290.5710872589. The cubic root of 204220422 is about 588.8884770352. Note that the first 3 decimals are identical.

Adding to 204220422 its reverse (224022402), we get a palindrome (428242824).

The spelling of 204220422 in words is "two hundred four million, two hundred twenty thousand, four hundred twenty-two".