44421444 has 18 divisors (see below), whose sum is σ = 112287630. Its totient is φ = 14807136.

The previous prime is 44421407. The next prime is 44421457. The reversal of 44421444 is 44412444.

44421444 is a `hidden beast` number, since 444 + 214 + 4 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 34574400 + 9847044 = 5880^2 + 3138^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

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 5 ways as a sum of consecutive naturals, for example, 616929 + ... + 617000.

Almost surely, 2^44421444 is an apocalyptic number.

It is an amenable number.

44421444 is an abundant number, since it is smaller than the sum of its proper divisors (67866186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44421444 is a wasteful number, since it uses less digits than its factorization.

44421444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233939 (or 1233934 counting only the distinct ones).

The product of its digits is 8192, while the sum is 27.

The square root of 44421444 is about 6664.9414100951. The cubic root of 44421444 is about 354.1584084687.

Adding to 44421444 its reverse (44412444), we get a palindrome (88833888).

It can be divided in two parts, 4442 and 1444, that added together give a triangular number (5886 = T₁₀₈).

The spelling of 44421444 in words is "forty-four million, four hundred twenty-one thousand, four hundred forty-four".