44231009 has 2 divisors, whose sum is σ = 44231010. Its totient is φ = 44231008.

The previous prime is 44230999. The next prime is 44231023. The reversal of 44231009 is 90013244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44182609 + 48400 = 6647^2 + 220^2 .

It is a cyclic number.

It is not a de Polignac number, because 44231009 - 2¹² = 44226913 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (44231029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22115504 + 22115505.

It is an arithmetic number, because the mean of its divisors is an integer number (22115505).

Almost surely, 2^44231009 is an apocalyptic number.

It is an amenable number.

44231009 is a deficient number, since it is larger than the sum of its proper divisors (1).

44231009 is an equidigital number, since it uses as much as digits as its factorization.

44231009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 44231009 is about 6650.6397436638. The cubic root of 44231009 is about 353.6515904512.

The spelling of 44231009 in words is "forty-four million, two hundred thirty-one thousand, nine".