44143421 has 8 divisors (see below), whose sum is σ = 50517120. Its totient is φ = 37786608.

The previous prime is 44143409. The next prime is 44143427. The reversal of 44143421 is 12434144.

It is a happy number.

44143421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 44143421 - 2⁶ = 44143357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44143427) 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 7 ways as a sum of consecutive naturals, for example, 2000 + ... + 9606.

It is an arithmetic number, because the mean of its divisors is an integer number (6314640).

Almost surely, 2^44143421 is an apocalyptic number.

It is an amenable number.

44143421 is a deficient number, since it is larger than the sum of its proper divisors (6373699).

44143421 is an equidigital number, since it uses as much as digits as its factorization.

44143421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8443.

The product of its digits is 1536, while the sum is 23.

The square root of 44143421 is about 6644.0515500709. The cubic root of 44143421 is about 353.4179978870.

Adding to 44143421 its reverse (12434144), we get a palindrome (56577565).

The spelling of 44143421 in words is "forty-four million, one hundred forty-three thousand, four hundred twenty-one".