204412431144 has 32 divisors (see below), whose sum is σ = 511047976320. Its totient is φ = 68135223936.

The previous prime is 204412431103. The next prime is 204412431149. The reversal of 204412431144 is 441134214402.

It is a happy number.

It is a super-2 number, since 2×204412431144² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (204412431149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 703377 + ... + 950559.

It is an arithmetic number, because the mean of its divisors is an integer number (15970249260).

Almost surely, 2^204412431144 is an apocalyptic number.

204412431144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

204412431144 is an abundant number, since it is smaller than the sum of its proper divisors (306635545176).

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

204412431144 is a wasteful number, since it uses less digits than its factorization.

204412431144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281649 (or 281645 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 204412431144 its reverse (441134214402), we get a palindrome (645546645546).

The spelling of 204412431144 in words is "two hundred four billion, four hundred twelve million, four hundred thirty-one thousand, one hundred forty-four".