204012238 has 4 divisors (see below), whose sum is σ = 306018360. Its totient is φ = 102006118.

The previous prime is 204012229. The next prime is 204012239. The reversal of 204012238 is 832210402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 832210402 = 2 ⋅416105201.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204012239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51003058 + ... + 51003061.

It is an arithmetic number, because the mean of its divisors is an integer number (76504590).

Almost surely, 2^204012238 is an apocalyptic number.

204012238 is a deficient number, since it is larger than the sum of its proper divisors (102006122).

204012238 is a wasteful number, since it uses less digits than its factorization.

204012238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102006121.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 204012238 is about 14283.2852663524. The cubic root of 204012238 is about 588.6883030598.

The spelling of 204012238 in words is "two hundred four million, twelve thousand, two hundred thirty-eight".