4449282394221 has 64 divisors (see below), whose sum is σ = 7543895040000. Its totient is φ = 2538832372416.

The previous prime is 4449282394217. The next prime is 4449282394231. The reversal of 4449282394221 is 1224932829444.

4449282394221 is a `hidden beast` number, since 4 + 4 + 4 + 9 + 28 + 2 + 394 + 221 = 666.

It is not a de Polignac number, because 4449282394221 - 2² = 4449282394217 is a prime.

It is a super-2 number, since 2×4449282394221² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4449282394231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 459679260 + ... + 459688938.

It is an arithmetic number, because the mean of its divisors is an integer number (117873360000).

Almost surely, 2^{4449282394221} is an apocalyptic number.

It is an amenable number.

4449282394221 is a deficient number, since it is larger than the sum of its proper divisors (3094612645779).

4449282394221 is a wasteful number, since it uses less digits than its factorization.

4449282394221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12903 (or 12897 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 54.

The spelling of 4449282394221 in words is "four trillion, four hundred forty-nine billion, two hundred eighty-two million, three hundred ninety-four thousand, two hundred twenty-one".