204126406 has 8 divisors (see below), whose sum is σ = 334025064. Its totient is φ = 92784720.

The previous prime is 204126401. The next prime is 204126431. The reversal of 204126406 is 604621402.

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 (204126401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4639215 + ... + 4639258.

It is an arithmetic number, because the mean of its divisors is an integer number (41753133).

Almost surely, 2^204126406 is an apocalyptic number.

204126406 is a deficient number, since it is larger than the sum of its proper divisors (129898658).

204126406 is a wasteful number, since it uses less digits than its factorization.

204126406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9278486.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 204126406 is about 14287.2812669171. The cubic root of 204126406 is about 588.7980952201.

Adding to 204126406 its reverse (604621402), we get a palindrome (808747808).

The spelling of 204126406 in words is "two hundred four million, one hundred twenty-six thousand, four hundred six".