4438968481 has 4 divisors (see below), whose sum is σ = 4700084292. Its totient is φ = 4177852672.

The previous prime is 4438968473. The next prime is 4438968577. The reversal of 4438968481 is 1848698344.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1275918400 + 3163050081 = 35720^2 + 56241^2 .

It is a cyclic number.

It is not a de Polignac number, because 4438968481 - 2³ = 4438968473 is a prime.

It is a super-2 number, since 2×4438968481² = 39408882350622894722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4438968581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130557880 + ... + 130557913.

It is an arithmetic number, because the mean of its divisors is an integer number (1175021073).

Almost surely, 2^4438968481 is an apocalyptic number.

It is an amenable number.

4438968481 is a deficient number, since it is larger than the sum of its proper divisors (261115811).

4438968481 is a wasteful number, since it uses less digits than its factorization.

4438968481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261115810.

The product of its digits is 5308416, while the sum is 55.

The square root of 4438968481 is about 66625.5842826162. The cubic root of 4438968481 is about 1643.4658610177.

It can be divided in two parts, 4438968 and 481, that added together give a square (4439449 = 2107²).

The spelling of 4438968481 in words is "four billion, four hundred thirty-eight million, nine hundred sixty-eight thousand, four hundred eighty-one".