204012144 has 60 divisors (see below), whose sum is σ = 652518256. Its totient is φ = 58288896.

The previous prime is 204012143. The next prime is 204012169. The reversal of 204012144 is 441210402.

204012144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204012143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100189 + ... + 102204.

Almost surely, 2^204012144 is an apocalyptic number.

204012144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

204012144 is an abundant number, since it is smaller than the sum of its proper divisors (448506112).

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

204012144 is a wasteful number, since it uses less digits than its factorization.

204012144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202414 (or 202405 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 204012144 is about 14283.2819757925. The cubic root of 204012144 is about 588.6882126458.

Adding to 204012144 its reverse (441210402), we get a palindrome (645222546).

The spelling of 204012144 in words is "two hundred four million, twelve thousand, one hundred forty-four".