204401232 has 100 divisors (see below), whose sum is σ = 676140256. Its totient is φ = 58397760.

The previous prime is 204401173. The next prime is 204401237. The reversal of 204401232 is 232104402.

204401232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204401237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2194 + ... + 20337.

Almost surely, 2^204401232 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 204401232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338070128).

204401232 is an abundant number, since it is smaller than the sum of its proper divisors (471739024).

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

204401232 is a wasteful number, since it uses less digits than its factorization.

204401232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22558 (or 22543 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 204401232 is about 14296.8958868700. The cubic root of 204401232 is about 589.0622198898.

Adding to 204401232 its reverse (232104402), we get a palindrome (436505634).

The spelling of 204401232 in words is "two hundred four million, four hundred one thousand, two hundred thirty-two".