44426521 has 8 divisors (see below), whose sum is σ = 46053000. Its totient is φ = 42806400.

The previous prime is 44426513. The next prime is 44426527. The reversal of 44426521 is 12562444.

44426521 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 4 ways, for example, as 24890121 + 19536400 = 4989^2 + 4420^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44426521 - 2³ = 44426513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44426521.

It is not an unprimeable number, because it can be changed into a prime (44426527) 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 7 ways as a sum of consecutive naturals, for example, 16155 + ... + 18703.

It is an arithmetic number, because the mean of its divisors is an integer number (5756625).

Almost surely, 2^44426521 is an apocalyptic number.

It is an amenable number.

44426521 is a deficient number, since it is larger than the sum of its proper divisors (1626479).

44426521 is a wasteful number, since it uses less digits than its factorization.

44426521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3179.

The product of its digits is 7680, while the sum is 28.

The square root of 44426521 is about 6665.3222727787. The cubic root of 44426521 is about 354.1719004040.

Adding to 44426521 its reverse (12562444), we get a palindrome (56988965).

The spelling of 44426521 in words is "forty-four million, four hundred twenty-six thousand, five hundred twenty-one".