204144041240 has 96 divisors (see below), whose sum is σ = 493142262480. Its totient is φ = 75995986176.

The previous prime is 204144041219. The next prime is 204144041251. The reversal of 204144041240 is 42140441402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 652547 + ... + 913293.

Almost surely, 2^204144041240 is an apocalyptic number.

204144041240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204144041240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246571131240).

204144041240 is an abundant number, since it is smaller than the sum of its proper divisors (288998221240).

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

204144041240 is a wasteful number, since it uses less digits than its factorization.

204144041240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260841 (or 260814 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 204144041240 its reverse (42140441402), we get a palindrome (246284482642).

The spelling of 204144041240 in words is "two hundred four billion, one hundred forty-four million, forty-one thousand, two hundred forty".