204920422 has 16 divisors (see below), whose sum is σ = 351947520. Its totient is φ = 87659208.

The previous prime is 204920407. The next prime is 204920437. The reversal of 204920422 is 224029402.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (204920407) and next prime (204920437).

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, 5722 + ... + 21037.

It is an arithmetic number, because the mean of its divisors is an integer number (21996720).

Almost surely, 2^204920422 is an apocalyptic number.

204920422 is a deficient number, since it is larger than the sum of its proper divisors (147027098).

204920422 is a wasteful number, since it uses less digits than its factorization.

204920422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27315.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 204920422 is about 14315.0418092299. The cubic root of 204920422 is about 589.5605479899.

Adding to 204920422 its reverse (224029402), we get a palindrome (428949824).

The spelling of 204920422 in words is "two hundred four million, nine hundred twenty thousand, four hundred twenty-two".