44402421144321 has 12 divisors (see below), whose sum is σ = 65870258394772. Its totient is φ = 28801570471776.

The previous prime is 44402421144317. The next prime is 44402421144337. The reversal of 44402421144321 is 12344112420444.

44402421144321 is a `hidden beast` number, since 4 + 4 + 4 + 0 + 2 + 4 + 211 + 4 + 432 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16714156007025 + 27688265137296 = 4088295^2 + 5261964^2 .

It is not a de Polignac number, because 44402421144321 - 2² = 44402421144317 is a prime.

It is a super-2 number, since 2×44402421144321² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44402421144121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66670301686 + ... + 66670302351.

Almost surely, 2^{44402421144321} is an apocalyptic number.

It is an amenable number.

44402421144321 is a deficient number, since it is larger than the sum of its proper divisors (21467837250451).

44402421144321 is a wasteful number, since it uses less digits than its factorization.

44402421144321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133340604080 (or 133340604077 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 36.

Adding to 44402421144321 its reverse (12344112420444), we get a palindrome (56746533564765).

The spelling of 44402421144321 in words is "forty-four trillion, four hundred two billion, four hundred twenty-one million, one hundred forty-four thousand, three hundred twenty-one".