204243112 has 16 divisors (see below), whose sum is σ = 383562900. Its totient is φ = 101959680.

The previous prime is 204243101. The next prime is 204243113. The reversal of 204243112 is 211342402.

It can be written as a sum of positive squares in 2 ways, for example, as 157101156 + 47141956 = 12534^2 + 6866^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 204243112.

It is not an unprimeable number, because it can be changed into a prime (204243113) 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, 14787 + ... + 25042.

Almost surely, 2^204243112 is an apocalyptic number.

It is an amenable number.

204243112 is a deficient number, since it is larger than the sum of its proper divisors (179319788).

204243112 is a wasteful number, since it uses less digits than its factorization.

204243112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40476 (or 40472 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 204243112 is about 14291.3649453088. The cubic root of 204243112 is about 588.9102857988.

Adding to 204243112 its reverse (211342402), we get a palindrome (415585514).

It can be divided in two parts, 2042 and 43112, that added together give a palindrome (45154).

The spelling of 204243112 in words is "two hundred four million, two hundred forty-three thousand, one hundred twelve".