44021845 has 24 divisors (see below), whose sum is σ = 62774784. Its totient is φ = 29536416.

The previous prime is 44021837. The next prime is 44021863. The reversal of 44021845 is 54812044.

It is not a de Polignac number, because 44021845 - 2³ = 44021837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9604 + ... + 13426.

It is an arithmetic number, because the mean of its divisors is an integer number (2615616).

Almost surely, 2^44021845 is an apocalyptic number.

It is an amenable number.

44021845 is a deficient number, since it is larger than the sum of its proper divisors (18752939).

44021845 is a wasteful number, since it uses less digits than its factorization.

44021845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3889 (or 3882 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 44021845 is about 6634.8960052136. The cubic root of 44021845 is about 353.0932484569.

Adding to 44021845 its reverse (54812044), we get a palindrome (98833889).

The spelling of 44021845 in words is "forty-four million, twenty-one thousand, eight hundred forty-five".