204942130 has 32 divisors (see below), whose sum is σ = 385449840. Its totient is φ = 78355200.

The previous prime is 204942109. The next prime is 204942131. The reversal of 204942130 is 31249402.

204942130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 131171209 + 73770921 = 11453^2 + 8589^2 .

It is a junction number, because it is equal to n+sod(n) for n = 204942095 and 204942104.

It is not an unprimeable number, because it can be changed into a prime (204942131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25792 + ... + 32788.

Almost surely, 2^204942130 is an apocalyptic number.

204942130 is a deficient number, since it is larger than the sum of its proper divisors (180507710).

204942130 is a wasteful number, since it uses less digits than its factorization.

204942130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7134.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 204942130 is about 14315.8000125735. The cubic root of 204942130 is about 589.5813653855.

The spelling of 204942130 in words is "two hundred four million, nine hundred forty-two thousand, one hundred thirty".