44305421 has 2 divisors, whose sum is σ = 44305422. Its totient is φ = 44305420.

The previous prime is 44305411. The next prime is 44305423. The reversal of 44305421 is 12450344.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36120100 + 8185321 = 6010^2 + 2861^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44305421 is a prime.

It is a Sophie Germain prime.

Together with 44305423, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44305423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22152710 + 22152711.

It is an arithmetic number, because the mean of its divisors is an integer number (22152711).

Almost surely, 2^44305421 is an apocalyptic number.

It is an amenable number.

44305421 is a deficient number, since it is larger than the sum of its proper divisors (1).

44305421 is an equidigital number, since it uses as much as digits as its factorization.

44305421 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 44305421 is about 6656.2317417590. The cubic root of 44305421 is about 353.8498011560.

Adding to 44305421 its reverse (12450344), we get a palindrome (56755765).

The spelling of 44305421 in words is "forty-four million, three hundred five thousand, four hundred twenty-one".