204231144 has 32 divisors (see below), whose sum is σ = 549853920. Its totient is φ = 62840256.

The previous prime is 204231109. The next prime is 204231161. The reversal of 204231144 is 441132402.

It is a self number, because there is not a number n which added to its sum of digits gives 204231144.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326982 + ... + 327605.

It is an arithmetic number, because the mean of its divisors is an integer number (17182935).

Almost surely, 2^204231144 is an apocalyptic number.

204231144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

204231144 is an abundant number, since it is smaller than the sum of its proper divisors (345622776).

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

204231144 is a wasteful number, since it uses less digits than its factorization.

204231144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654609 (or 654605 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 204231144 is about 14290.9462247956. The cubic root of 204231144 is about 588.8987828144.

Adding to 204231144 its reverse (441132402), we get a palindrome (645363546).

The spelling of 204231144 in words is "two hundred four million, two hundred thirty-one thousand, one hundred forty-four".