444550109 has 2 divisors, whose sum is σ = 444550110. Its totient is φ = 444550108.

The previous prime is 444550037. The next prime is 444550121. The reversal of 444550109 is 901055444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 348568900 + 95981209 = 18670^2 + 9797^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444550109 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444550129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222275054 + 222275055.

It is an arithmetic number, because the mean of its divisors is an integer number (222275055).

Almost surely, 2^444550109 is an apocalyptic number.

It is an amenable number.

444550109 is a deficient number, since it is larger than the sum of its proper divisors (1).

444550109 is an equidigital number, since it uses as much as digits as its factorization.

444550109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 444550109 is about 21084.3569738325. The cubic root of 444550109 is about 763.2033014376.

The spelling of 444550109 in words is "four hundred forty-four million, five hundred fifty thousand, one hundred nine".