204181432 has 96 divisors (see below), whose sum is σ = 485503200. Its totient is φ = 79785216.

The previous prime is 204181421. The next prime is 204181433. The reversal of 204181432 is 234181402.

It is a junction number, because it is equal to n+sod(n) for n = 204181397 and 204181406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204181433) 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, 524694 + ... + 525082.

It is an arithmetic number, because the mean of its divisors is an integer number (5057325).

Almost surely, 2^204181432 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 204181432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242751600).

204181432 is an abundant number, since it is smaller than the sum of its proper divisors (281321768).

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

204181432 is a wasteful number, since it uses less digits than its factorization.

204181432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 514 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 204181432 is about 14289.2068359304. The cubic root of 204181432 is about 588.8509975593.

The spelling of 204181432 in words is "two hundred four million, one hundred eighty-one thousand, four hundred thirty-two".