44221355 has 4 divisors (see below), whose sum is σ = 53065632. Its totient is φ = 35377080.

The previous prime is 44221351. The next prime is 44221357. The reversal of 44221355 is 55312244.

It is a happy number.

44221355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 44221355 - 2² = 44221351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44221351) 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 3 ways as a sum of consecutive naturals, for example, 4422131 + ... + 4422140.

It is an arithmetic number, because the mean of its divisors is an integer number (13266408).

Almost surely, 2^44221355 is an apocalyptic number.

44221355 is a deficient number, since it is larger than the sum of its proper divisors (8844277).

44221355 is an equidigital number, since it uses as much as digits as its factorization.

44221355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8844276.

The product of its digits is 4800, while the sum is 26.

The square root of 44221355 is about 6649.9139092172. The cubic root of 44221355 is about 353.6258588739.

Adding to 44221355 its reverse (55312244), we get a palindrome (99533599).

The spelling of 44221355 in words is "forty-four million, two hundred twenty-one thousand, three hundred fifty-five".