44161321 has 4 divisors (see below), whose sum is σ = 44175232. Its totient is φ = 44147412.

The previous prime is 44161319. The next prime is 44161331. The reversal of 44161321 is 12316144.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 44161321 - 2¹ = 44161319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44161292 and 44161301.

It is not an unprimeable number, because it can be changed into a prime (44161331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400 + ... + 9406.

It is an arithmetic number, because the mean of its divisors is an integer number (11043808).

Almost surely, 2^44161321 is an apocalyptic number.

It is an amenable number.

44161321 is a deficient number, since it is larger than the sum of its proper divisors (13911).

44161321 is an equidigital number, since it uses as much as digits as its factorization.

44161321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13910.

The product of its digits is 576, while the sum is 22.

The square root of 44161321 is about 6645.3984831611. The cubic root of 44161321 is about 353.4657613448.

Adding to 44161321 its reverse (12316144), we get a palindrome (56477465).

The spelling of 44161321 in words is "forty-four million, one hundred sixty-one thousand, three hundred twenty-one".