44191369 has 2 divisors, whose sum is σ = 44191370. Its totient is φ = 44191368.

The previous prime is 44191363. The next prime is 44191379. The reversal of 44191369 is 96319144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44156025 + 35344 = 6645^2 + 188^2 .

It is a cyclic number.

It is not a de Polignac number, because 44191369 - 2²³ = 35802761 is a prime.

It is a super-2 number, since 2×44191369² = 3905754188188322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (44191363) 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, 22095684 + 22095685.

It is an arithmetic number, because the mean of its divisors is an integer number (22095685).

Almost surely, 2^44191369 is an apocalyptic number.

It is an amenable number.

44191369 is a deficient number, since it is larger than the sum of its proper divisors (1).

44191369 is an equidigital number, since it uses as much as digits as its factorization.

44191369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 37.

The square root of 44191369 is about 6647.6589112258. The cubic root of 44191369 is about 353.5459109039.

The spelling of 44191369 in words is "forty-four million, one hundred ninety-one thousand, three hundred sixty-nine".