204661456 has 10 divisors (see below), whose sum is σ = 396531602. Its totient is φ = 102330720.

The previous prime is 204661441. The next prime is 204661459. The reversal of 204661456 is 654166402.

It can be written as a sum of positive squares in only one way, i.e., 193210000 + 11451456 = 13900^2 + 3384^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204661459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6395655 + ... + 6395686.

Almost surely, 2^204661456 is an apocalyptic number.

It is an amenable number.

204661456 is a deficient number, since it is larger than the sum of its proper divisors (191870146).

204661456 is a wasteful number, since it uses less digits than its factorization.

204661456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12791349 (or 12791343 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 204661456 is about 14305.9937089319. The cubic root of 204661456 is about 589.3120930127.

The spelling of 204661456 in words is "two hundred four million, six hundred sixty-one thousand, four hundred fifty-six".