204097930 has 8 divisors (see below), whose sum is σ = 367376292. Its totient is φ = 81639168.

The previous prime is 204097897. The next prime is 204097931. The reversal of 204097930 is 39790402.

It can be written as a sum of positive squares in 2 ways, for example, as 193515921 + 10582009 = 13911^2 + 3253^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (204097931) 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 3 ways as a sum of consecutive naturals, for example, 10204887 + ... + 10204906.

Almost surely, 2^204097930 is an apocalyptic number.

204097930 is a deficient number, since it is larger than the sum of its proper divisors (163278362).

204097930 is a wasteful number, since it uses less digits than its factorization.

204097930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20409800.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 204097930 is about 14286.2846814698. The cubic root of 204097930 is about 588.7707144831.

The spelling of 204097930 in words is "two hundred four million, ninety-seven thousand, nine hundred thirty".