204449472 has 84 divisors (see below), whose sum is σ = 593567520. Its totient is φ = 67272192.

The previous prime is 204449459. The next prime is 204449527. The reversal of 204449472 is 274944402.

204449472 is a `hidden beast` number, since 204 + 449 + 4 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 43258 + ... + 47750.

It is an arithmetic number, because the mean of its divisors is an integer number (7066280).

Almost surely, 2^204449472 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 204449472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296783760).

204449472 is an abundant number, since it is smaller than the sum of its proper divisors (389118048).

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

204449472 is a wasteful number, since it uses less digits than its factorization.

204449472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4590 (or 4577 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 204449472 is about 14298.5828668438. The cubic root of 204449472 is about 589.1085570637.

The spelling of 204449472 in words is "two hundred four million, four hundred forty-nine thousand, four hundred seventy-two".