44340521 has 2 divisors, whose sum is σ = 44340522. Its totient is φ = 44340520.

The previous prime is 44340511. The next prime is 44340523. The reversal of 44340521 is 12504344.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34386496 + 9954025 = 5864^2 + 3155^2 .

It is a cyclic number.

It is not a de Polignac number, because 44340521 - 2²² = 40146217 is a prime.

Together with 44340523, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (44340523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22170260 + 22170261.

It is an arithmetic number, because the mean of its divisors is an integer number (22170261).

Almost surely, 2^44340521 is an apocalyptic number.

It is an amenable number.

44340521 is a deficient number, since it is larger than the sum of its proper divisors (1).

44340521 is an equidigital number, since it uses as much as digits as its factorization.

44340521 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 44340521 is about 6658.8678467139. The cubic root of 44340521 is about 353.9432197439.

Adding to 44340521 its reverse (12504344), we get a palindrome (56844865).

The spelling of 44340521 in words is "forty-four million, three hundred forty thousand, five hundred twenty-one".