44430521 has 2 divisors, whose sum is σ = 44430522. Its totient is φ = 44430520.

The previous prime is 44430499. The next prime is 44430527. The reversal of 44430521 is 12503444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25603600 + 18826921 = 5060^2 + 4339^2 .

It is a cyclic number.

It is not a de Polignac number, because 44430521 - 2¹⁴ = 44414137 is a prime.

It is not a weakly prime, because it can be changed into another prime (44430527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22215260 + 22215261.

It is an arithmetic number, because the mean of its divisors is an integer number (22215261).

Almost surely, 2^44430521 is an apocalyptic number.

It is an amenable number.

44430521 is a deficient number, since it is larger than the sum of its proper divisors (1).

44430521 is an equidigital number, since it uses as much as digits as its factorization.

44430521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 44430521 is about 6665.6223265349. The cubic root of 44430521 is about 354.1825295286.

Adding to 44430521 its reverse (12503444), we get a palindrome (56933965).

The spelling of 44430521 in words is "forty-four million, four hundred thirty thousand, five hundred twenty-one".