44043221 has 8 divisors (see below), whose sum is σ = 44470944. Its totient is φ = 43618000.

The previous prime is 44043193. The next prime is 44043247. The reversal of 44043221 is 12234044.

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

It is a cyclic number.

It is not a de Polignac number, because 44043221 - 2¹⁰ = 44042197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44043193 and 44043202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44043271) 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, 56591 + ... + 57363.

It is an arithmetic number, because the mean of its divisors is an integer number (5558868).

Almost surely, 2^44043221 is an apocalyptic number.

It is an amenable number.

44043221 is a deficient number, since it is larger than the sum of its proper divisors (427723).

44043221 is a wasteful number, since it uses less digits than its factorization.

44043221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 44043221 is about 6636.5066865031. The cubic root of 44043221 is about 353.1503905412.

Adding to 44043221 its reverse (12234044), we get a palindrome (56277265).

The spelling of 44043221 in words is "forty-four million, forty-three thousand, two hundred twenty-one".