44023521 has 4 divisors (see below), whose sum is σ = 58698032. Its totient is φ = 29349012.

The previous prime is 44023481. The next prime is 44023531. The reversal of 44023521 is 12532044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 44023521 - 2⁶ = 44023457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44023531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7337251 + ... + 7337256.

It is an arithmetic number, because the mean of its divisors is an integer number (14674508).

Almost surely, 2^44023521 is an apocalyptic number.

It is an amenable number.

44023521 is a deficient number, since it is larger than the sum of its proper divisors (14674511).

44023521 is a wasteful number, since it uses less digits than its factorization.

44023521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14674510.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 44023521 is about 6635.0223059158. The cubic root of 44023521 is about 353.0977293896.

Adding to 44023521 its reverse (12532044), we get a palindrome (56555565).

It can be divided in two parts, 44023 and 521, that added together give a palindrome (44544).

The spelling of 44023521 in words is "forty-four million, twenty-three thousand, five hundred twenty-one".