204342012 has 36 divisors (see below), whose sum is σ = 590322096. Its totient is φ = 58383360.

The previous prime is 204342011. The next prime is 204342013. The reversal of 204342012 is 210243402.

It is an interprime number because it is at equal distance from previous prime (204342011) and next prime (204342013).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204342011) 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 11 ways as a sum of consecutive naturals, for example, 405189 + ... + 405692.

It is an arithmetic number, because the mean of its divisors is an integer number (16397836).

Almost surely, 2^204342012 is an apocalyptic number.

It is an amenable number.

204342012 is an abundant number, since it is smaller than the sum of its proper divisors (385980084).

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

204342012 is a wasteful number, since it uses less digits than its factorization.

204342012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810898 (or 810893 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 204342012 is about 14294.8246578963. The cubic root of 204342012 is about 589.0053258522.

Adding to 204342012 its reverse (210243402), we get a palindrome (414585414).

The spelling of 204342012 in words is "two hundred four million, three hundred forty-two thousand, twelve".