204130406 has 8 divisors (see below), whose sum is σ = 314471280. Its totient is φ = 99306648.

The previous prime is 204130403. The next prime is 204130439. The reversal of 204130406 is 604031402.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204130403) 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, 1379186 + ... + 1379333.

It is an arithmetic number, because the mean of its divisors is an integer number (39308910).

Almost surely, 2^204130406 is an apocalyptic number.

204130406 is a deficient number, since it is larger than the sum of its proper divisors (110340874).

204130406 is a wasteful number, since it uses less digits than its factorization.

204130406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758558.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 204130406 is about 14287.4212508766. The cubic root of 204130406 is about 588.8019411654.

Adding to 204130406 its reverse (604031402), we get a palindrome (808161808).

The spelling of 204130406 in words is "two hundred four million, one hundred thirty thousand, four hundred six".