44533021 has 12 divisors (see below), whose sum is σ = 48718260. Its totient is φ = 40684800.

The previous prime is 44533003. The next prime is 44533031. The reversal of 44533021 is 12033544.

44533021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 509796 + 44023225 = 714^2 + 6635^2 .

It is a de Polignac number, because none of the positive numbers 2^k-44533021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44532983 and 44533001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44533031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15765 + ... + 18373.

It is an arithmetic number, because the mean of its divisors is an integer number (4059855).

Almost surely, 2^44533021 is an apocalyptic number.

It is an amenable number.

44533021 is a deficient number, since it is larger than the sum of its proper divisors (4185239).

44533021 is a wasteful number, since it uses less digits than its factorization.

44533021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2736 (or 2723 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 44533021 is about 6673.3066016781. The cubic root of 44533021 is about 354.4546834967.

Adding to 44533021 its reverse (12033544), we get a palindrome (56566565).

The spelling of 44533021 in words is "forty-four million, five hundred thirty-three thousand, twenty-one".