204393474 has 12 divisors (see below), whose sum is σ = 442852566. Its totient is φ = 68131152.

The previous prime is 204393473. The next prime is 204393481. The reversal of 204393474 is 474393402.

It can be written as a sum of positive squares in only one way, i.e., 153884025 + 50509449 = 12405^2 + 7107^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (204393473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5677579 + ... + 5677614.

Almost surely, 2^204393474 is an apocalyptic number.

204393474 is an abundant number, since it is smaller than the sum of its proper divisors (238459092).

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

204393474 is a wasteful number, since it uses less digits than its factorization.

204393474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11355201 (or 11355198 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 204393474 is about 14296.6245666591. The cubic root of 204393474 is about 589.0547672235.

The spelling of 204393474 in words is "two hundred four million, three hundred ninety-three thousand, four hundred seventy-four".