44222644 has 24 divisors (see below), whose sum is σ = 82417608. Its totient is φ = 20689920.

The previous prime is 44222639. The next prime is 44222707. The reversal of 44222644 is 44622244.

It can be written as a sum of positive squares in 4 ways, for example, as 504100 + 43718544 = 710^2 + 6612^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10512 + ... + 14104.

It is an arithmetic number, because the mean of its divisors is an integer number (3434067).

Almost surely, 2^44222644 is an apocalyptic number.

It is an amenable number.

44222644 is a deficient number, since it is larger than the sum of its proper divisors (38194964).

44222644 is a wasteful number, since it uses less digits than its factorization.

44222644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3795 (or 3793 counting only the distinct ones).

The product of its digits is 12288, while the sum is 28.

The square root of 44222644 is about 6650.0108270589. The cubic root of 44222644 is about 353.6292947652.

Adding to 44222644 its reverse (44622244), we get a palindrome (88844888).

It can be divided in two parts, 442226 and 44, that added together give a triangular number (442270 = T₉₄₀).

The spelling of 44222644 in words is "forty-four million, two hundred twenty-two thousand, six hundred forty-four".