204243132 has 48 divisors (see below), whose sum is σ = 493879680. Its totient is φ = 65652288.

The previous prime is 204243131. The next prime is 204243139. The reversal of 204243132 is 231342402.

It is a junction number, because it is equal to n+sod(n) for n = 204243099 and 204243108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204243131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34803 + ... + 40245.

It is an arithmetic number, because the mean of its divisors is an integer number (10289160).

Almost surely, 2^204243132 is an apocalyptic number.

It is an amenable number.

204243132 is an abundant number, since it is smaller than the sum of its proper divisors (289636548).

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

204243132 is a wasteful number, since it uses less digits than its factorization.

204243132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5562 (or 5560 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 204243132 is about 14291.3656450320. The cubic root of 204243132 is about 588.9103050213.

Adding to 204243132 its reverse (231342402), we get a palindrome (435585534).

The spelling of 204243132 in words is "two hundred four million, two hundred forty-three thousand, one hundred thirty-two".