204321132 has 18 divisors (see below), whose sum is σ = 516478508. Its totient is φ = 68107032.

The previous prime is 204321119. The next prime is 204321133. The reversal of 204321132 is 231123402.

204321132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×204321132² = 83494249963522848, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (204321133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2837758 + ... + 2837829.

Almost surely, 2^204321132 is an apocalyptic number.

It is an amenable number.

204321132 is an abundant number, since it is smaller than the sum of its proper divisors (312157376).

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

204321132 is a wasteful number, since it uses less digits than its factorization.

204321132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5675597 (or 5675592 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 204321132 is about 14294.0943049918. The cubic root of 204321132 is about 588.9852633273.

Adding to 204321132 its reverse (231123402), we get a palindrome (435444534).

The spelling of 204321132 in words is "two hundred four million, three hundred twenty-one thousand, one hundred thirty-two".