204523236 has 18 divisors (see below), whose sum is σ = 516989382. Its totient is φ = 68174400.

The previous prime is 204523223. The next prime is 204523261. The reversal of 204523236 is 632325402.

204523236 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 152769600 + 51753636 = 12360^2 + 7194^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2840565 + ... + 2840636.

Almost surely, 2^204523236 is an apocalyptic number.

It is an amenable number.

204523236 is an abundant number, since it is smaller than the sum of its proper divisors (312466146).

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

204523236 is a wasteful number, since it uses less digits than its factorization.

204523236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5681211 (or 5681206 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 204523236 is about 14301.1620506867. The cubic root of 204523236 is about 589.1793973519.

Adding to 204523236 its reverse (632325402), we get a palindrome (836848638).

It can be divided in two parts, 2045 and 23236, that added together give a square (25281 = 159²).

The spelling of 204523236 in words is "two hundred four million, five hundred twenty-three thousand, two hundred thirty-six".