204331356 has 96 divisors (see below), whose sum is σ = 565931520. Its totient is φ = 63600768.

The previous prime is 204331343. The next prime is 204331363. The reversal of 204331356 is 653133402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105856 + ... + 107768.

It is an arithmetic number, because the mean of its divisors is an integer number (5895120).

Almost surely, 2^204331356 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 204331356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282965760).

204331356 is an abundant number, since it is smaller than the sum of its proper divisors (361600164).

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

204331356 is a wasteful number, since it uses less digits than its factorization.

204331356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992 (or 1984 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 204331356 is about 14294.4519307317. The cubic root of 204331356 is about 588.9950872171.

Adding to 204331356 its reverse (653133402), we get a palindrome (857464758).

The spelling of 204331356 in words is "two hundred four million, three hundred thirty-one thousand, three hundred fifty-six".