204012030 has 64 divisors (see below), whose sum is σ = 500385600. Its totient is φ = 53222400.

The previous prime is 204011989. The next prime is 204012031. The reversal of 204012030 is 30210402.

It is a junction number, because it is equal to n+sod(n) for n = 204011997 and 204012015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204012031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 290680 + ... + 291380.

It is an arithmetic number, because the mean of its divisors is an integer number (7818525).

Almost surely, 2^204012030 is an apocalyptic number.

204012030 is an abundant number, since it is smaller than the sum of its proper divisors (296373570).

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

204012030 is a wasteful number, since it uses less digits than its factorization.

204012030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 204012030 is about 14283.2779851125. The cubic root of 204012030 is about 588.6881029947.

Adding to 204012030 its reverse (30210402), we get a palindrome (234222432).

The spelling of 204012030 in words is "two hundred four million, twelve thousand, thirty".