204994720 has 96 divisors (see below), whose sum is σ = 559173888. Its totient is φ = 69562368.

The previous prime is 204994703. The next prime is 204994747. The reversal of 204994720 is 27499402.

204994720 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 204994720.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114472 + ... + 116248.

It is an arithmetic number, because the mean of its divisors is an integer number (5824728).

Almost surely, 2^204994720 is an apocalyptic number.

204994720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204994720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279586944).

204994720 is an abundant number, since it is smaller than the sum of its proper divisors (354179168).

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

204994720 is a wasteful number, since it uses less digits than its factorization.

204994720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902 (or 1894 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 204994720 is about 14317.6366764910. The cubic root of 204994720 is about 589.6317917055.

It can be divided in two parts, 2049 and 94720, that added together give a palindrome (96769).

The spelling of 204994720 in words is "two hundred four million, nine hundred ninety-four thousand, seven hundred twenty".