4444421056 has 56 divisors (see below), whose sum is σ = 9096816960. Its totient is φ = 2152829952.

The previous prime is 4444421039. The next prime is 4444421101. The reversal of 4444421056 is 6501244444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 562026 + ... + 569878.

It is an arithmetic number, because the mean of its divisors is an integer number (162443160).

Almost surely, 2^4444421056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4444421056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4548408480).

4444421056 is an abundant number, since it is smaller than the sum of its proper divisors (4652395904).

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

4444421056 is a wasteful number, since it uses less digits than its factorization.

4444421056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8141 (or 8131 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 34.

The square root of 4444421056 is about 66666.4912531026. The cubic root of 4444421056 is about 1644.1384988387.

The spelling of 4444421056 in words is "four billion, four hundred forty-four million, four hundred twenty-one thousand, fifty-six".