204774668 has 12 divisors (see below), whose sum is σ = 409549392. Its totient is φ = 87760560.

The previous prime is 204774667. The next prime is 204774701. The reversal of 204774668 is 866477402.

204774668 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (204774667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3656663 + ... + 3656718.

It is an arithmetic number, because the mean of its divisors is an integer number (34129116).

Almost surely, 2^204774668 is an apocalyptic number.

204774668 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

204774668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

204774668 is a wasteful number, since it uses less digits than its factorization.

204774668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7313392 (or 7313390 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 44.

The square root of 204774668 is about 14309.9499649719. The cubic root of 204774668 is about 589.4207356851.

The spelling of 204774668 in words is "two hundred four million, seven hundred seventy-four thousand, six hundred sixty-eight".