204430912 has 56 divisors (see below), whose sum is σ = 465067904. Its totient is φ = 87340032.

The previous prime is 204430873. The next prime is 204430943. The reversal of 204430912 is 219034402.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217708 + ... + 218644.

It is an arithmetic number, because the mean of its divisors is an integer number (8304784).

Almost surely, 2^204430912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204430912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232533952).

204430912 is an abundant number, since it is smaller than the sum of its proper divisors (260636992).

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

204430912 is an equidigital number, since it uses as much as digits as its factorization.

204430912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443 (or 1433 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 204430912 is about 14297.9338367472. The cubic root of 204430912 is about 589.0907300254.

The spelling of 204430912 in words is "two hundred four million, four hundred thirty thousand, nine hundred twelve".