44320045 has 16 divisors (see below), whose sum is σ = 66307968. Its totient is φ = 27627840.

The previous prime is 44320019. The next prime is 44320063. The reversal of 44320045 is 54002344.

It is a happy number.

It is not a de Polignac number, because 44320045 - 2¹⁷ = 44188973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44319998 and 44320025.

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 15 ways as a sum of consecutive naturals, for example, 57174 + ... + 57943.

It is an arithmetic number, because the mean of its divisors is an integer number (4144248).

Almost surely, 2^44320045 is an apocalyptic number.

It is an amenable number.

44320045 is a deficient number, since it is larger than the sum of its proper divisors (21987923).

44320045 is a wasteful number, since it uses less digits than its factorization.

44320045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115140.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 44320045 is about 6657.3301705714. The cubic root of 44320045 is about 353.8887289000. Note that the first 3 decimals are identical.

Adding to 44320045 its reverse (54002344), we get a palindrome (98322389).

The spelling of 44320045 in words is "forty-four million, three hundred twenty thousand, forty-five".