244044220433440 has 144 divisors (see below), whose sum is σ = 674160873146712. Its totient is φ = 83238768377856.

The previous prime is 244044220433417. The next prime is 244044220433441. The reversal of 244044220433440 is 44334022440442.

It can be written as a sum of positive squares in 4 ways, for example, as 194293825300624 + 49750395132816 = 13938932^2 + 7053396^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 244044220433393 and 244044220433402.

It is not an unprimeable number, because it can be changed into a prime (244044220433441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79129599 + ... + 82155838.

Almost surely, 2^{244044220433440} is an apocalyptic number.

244044220433440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244044220433440 is an abundant number, since it is smaller than the sum of its proper divisors (430116652713272).

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

244044220433440 is a wasteful number, since it uses less digits than its factorization.

244044220433440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161285659 (or 161285644 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 40.

Adding to 244044220433440 its reverse (44334022440442), we get a palindrome (288378242873882).

The spelling of 244044220433440 in words is "two hundred forty-four trillion, forty-four billion, two hundred twenty million, four hundred thirty-three thousand, four hundred forty".