204012396 has 72 divisors (see below), whose sum is σ = 590763264. Its totient is φ = 58151520.

The previous prime is 204012379. The next prime is 204012397. The reversal of 204012396 is 693210402.

204012396 is a `hidden beast` number, since 20 + 401 + 239 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (204012397) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158371 + ... + 159653.

Almost surely, 2^204012396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204012396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295381632).

204012396 is an abundant number, since it is smaller than the sum of its proper divisors (386750868).

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

204012396 is a wasteful number, since it uses less digits than its factorization.

204012396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931 (or 1926 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 204012396 is about 14283.2907972918. The cubic root of 204012396 is about 588.6884550323.

Adding to 204012396 its reverse (693210402), we get a palindrome (897222798).

The spelling of 204012396 in words is "two hundred four million, twelve thousand, three hundred ninety-six".