204542012 has 12 divisors (see below), whose sum is σ = 358728216. Its totient is φ = 102048240.

The previous prime is 204542003. The next prime is 204542027. The reversal of 204542012 is 210245402.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53618 + ... + 57305.

It is an arithmetic number, because the mean of its divisors is an integer number (29894018).

Almost surely, 2^204542012 is an apocalyptic number.

It is an amenable number.

204542012 is a deficient number, since it is larger than the sum of its proper divisors (154186204).

204542012 is a wasteful number, since it uses less digits than its factorization.

204542012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111388 (or 111386 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 204542012 is about 14301.8184857731. The cubic root of 204542012 is about 589.1974264262.

Adding to 204542012 its reverse (210245402), we get a palindrome (414787414).

The spelling of 204542012 in words is "two hundred four million, five hundred forty-two thousand, twelve".