4442049381 has 24 divisors (see below), whose sum is σ = 7516049184. Its totient is φ = 2307557280.

The previous prime is 4442049377. The next prime is 4442049389. The reversal of 4442049381 is 1839402444.

It is not a de Polignac number, because 4442049381 - 2² = 4442049377 is a prime.

It is a super-2 number, since 2×4442049381² = 39463605406484966322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4442049389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1371930 + ... + 1375163.

It is an arithmetic number, because the mean of its divisors is an integer number (313168716).

Almost surely, 2^4442049381 is an apocalyptic number.

It is an amenable number.

4442049381 is a deficient number, since it is larger than the sum of its proper divisors (3073999803).

4442049381 is a wasteful number, since it uses less digits than its factorization.

4442049381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2747121 (or 2747114 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 4442049381 is about 66648.7012701673. The cubic root of 4442049381 is about 1643.8459931006.

The spelling of 4442049381 in words is "four billion, four hundred forty-two million, forty-nine thousand, three hundred eighty-one".