204420430 has 16 divisors (see below), whose sum is σ = 387323280. Its totient is φ = 77464512.

The previous prime is 204420421. The next prime is 204420467. The reversal of 204420430 is 34024402.

204420430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 204420398 and 204420407.

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, 537759 + ... + 538138.

It is an arithmetic number, because the mean of its divisors is an integer number (24207705).

Almost surely, 2^204420430 is an apocalyptic number.

204420430 is a deficient number, since it is larger than the sum of its proper divisors (182902850).

204420430 is a wasteful number, since it uses less digits than its factorization.

204420430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075923.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 204420430 is about 14297.5672755892. The cubic root of 204420430 is about 589.0806614982.

Adding to 204420430 its reverse (34024402), we get a palindrome (238444832).

The spelling of 204420430 in words is "two hundred four million, four hundred twenty thousand, four hundred thirty".