44138843 has 8 divisors (see below), whose sum is σ = 53099520. Its totient is φ = 35841960.

The previous prime is 44138839. The next prime is 44138867. The reversal of 44138843 is 34883144.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44138843 - 2² = 44138839 is a prime.

It is a super-2 number, since 2×44138843² = 3896474922757298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44138803) 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 7 ways as a sum of consecutive naturals, for example, 165803 + ... + 166068.

It is an arithmetic number, because the mean of its divisors is an integer number (6637440).

Almost surely, 2^44138843 is an apocalyptic number.

44138843 is a deficient number, since it is larger than the sum of its proper divisors (8960677).

44138843 is a wasteful number, since it uses less digits than its factorization.

44138843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331897.

The product of its digits is 36864, while the sum is 35.

The square root of 44138843 is about 6643.7070224386. The cubic root of 44138843 is about 353.4057801092.

The spelling of 44138843 in words is "forty-four million, one hundred thirty-eight thousand, eight hundred forty-three".