44365421 has 2 divisors, whose sum is σ = 44365422. Its totient is φ = 44365420.

The previous prime is 44365417. The next prime is 44365423. The reversal of 44365421 is 12456344.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43375396 + 990025 = 6586^2 + 995^2 .

It is a cyclic number.

It is not a de Polignac number, because 44365421 - 2² = 44365417 is a prime.

Together with 44365423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44365423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22182710 + 22182711.

It is an arithmetic number, because the mean of its divisors is an integer number (22182711).

Almost surely, 2^44365421 is an apocalyptic number.

It is an amenable number.

44365421 is a deficient number, since it is larger than the sum of its proper divisors (1).

44365421 is an equidigital number, since it uses as much as digits as its factorization.

44365421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 29.

The square root of 44365421 is about 6660.7372715038. The cubic root of 44365421 is about 354.0094611620.

The spelling of 44365421 in words is "forty-four million, three hundred sixty-five thousand, four hundred twenty-one".