44221313 has 4 divisors (see below), whose sum is σ = 45162240. Its totient is φ = 43280388.

The previous prime is 44221237. The next prime is 44221319. The reversal of 44221313 is 31312244.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44221313 is a prime.

It is a super-3 number, since 3×44221313³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44221319) 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, 470393 + ... + 470486.

It is an arithmetic number, because the mean of its divisors is an integer number (11290560).

Almost surely, 2^44221313 is an apocalyptic number.

It is an amenable number.

44221313 is a deficient number, since it is larger than the sum of its proper divisors (940927).

44221313 is an equidigital number, since it uses as much as digits as its factorization.

44221313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940926.

The product of its digits is 576, while the sum is 20.

The square root of 44221313 is about 6649.9107512808. The cubic root of 44221313 is about 353.6257469198.

Adding to 44221313 its reverse (31312244), we get a palindrome (75533557).

The spelling of 44221313 in words is "forty-four million, two hundred twenty-one thousand, three hundred thirteen".