244121320144 has 20 divisors (see below), whose sum is σ = 509368524196. Its totient is φ = 112671378432.

The previous prime is 244121320139. The next prime is 244121320171. The reversal of 244121320144 is 441023121442.

It can be written as a sum of positive squares in 2 ways, for example, as 16103610000 + 228017710144 = 126900^2 + 477512^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586829889 + ... + 586830304.

Almost surely, 2^244121320144 is an apocalyptic number.

It is an amenable number.

244121320144 is an abundant number, since it is smaller than the sum of its proper divisors (265247204052).

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

244121320144 is a wasteful number, since it uses less digits than its factorization.

244121320144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173660214 (or 1173660208 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 244121320144 its reverse (441023121442), we get a palindrome (685144441586).

The spelling of 244121320144 in words is "two hundred forty-four billion, one hundred twenty-one million, three hundred twenty thousand, one hundred forty-four".