44221133 has 16 divisors (see below), whose sum is σ = 49704192. Its totient is φ = 39000000.

The previous prime is 44221129. The next prime is 44221147. The reversal of 44221133 is 33112244.

It is a cyclic number.

It is not a de Polignac number, because 44221133 - 2² = 44221129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44221193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58508 + ... + 59258.

It is an arithmetic number, because the mean of its divisors is an integer number (3106512).

Almost surely, 2^44221133 is an apocalyptic number.

It is an amenable number.

44221133 is a deficient number, since it is larger than the sum of its proper divisors (5483059).

44221133 is a wasteful number, since it uses less digits than its factorization.

44221133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916.

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

The square root of 44221133 is about 6649.8972172508. The cubic root of 44221133 is about 353.6252671155.

Adding to 44221133 its reverse (33112244), we get a palindrome (77333377).

Subtracting from 44221133 its reverse (33112244), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 442211 and 33, that added together give a palindrome (442244).

The spelling of 44221133 in words is "forty-four million, two hundred twenty-one thousand, one hundred thirty-three".