204213422 has 16 divisors (see below), whose sum is σ = 350564352. Its totient is φ = 87399000.

The previous prime is 204213413. The next prime is 204213479. The reversal of 204213422 is 224312402.

It is a junction number, because it is equal to n+sod(n) for n = 204213394 and 204213403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803 + ... + 20225.

It is an arithmetic number, because the mean of its divisors is an integer number (21910272).

Almost surely, 2^204213422 is an apocalyptic number.

204213422 is a deficient number, since it is larger than the sum of its proper divisors (146350930).

204213422 is a wasteful number, since it uses less digits than its factorization.

204213422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20183.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 204213422 is about 14290.3261684260. The cubic root of 204213422 is about 588.8817485758.

Adding to 204213422 its reverse (224312402), we get a palindrome (428525824).

The spelling of 204213422 in words is "two hundred four million, two hundred thirteen thousand, four hundred twenty-two".