444334409 has 2 divisors, whose sum is σ = 444334410. Its totient is φ = 444334408.

The previous prime is 444334391. The next prime is 444334427. The reversal of 444334409 is 904433444.

It is a balanced prime because it is at equal distance from previous prime (444334391) and next prime (444334427).

It can be written as a sum of positive squares in only one way, i.e., 256096009 + 188238400 = 16003^2 + 13720^2 .

It is a cyclic number.

It is not a de Polignac number, because 444334409 - 2⁸ = 444334153 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_23568560 and since 444334409 and 23568560 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (444334459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222167204 + 222167205.

It is an arithmetic number, because the mean of its divisors is an integer number (222167205).

Almost surely, 2^444334409 is an apocalyptic number.

It is an amenable number.

444334409 is a deficient number, since it is larger than the sum of its proper divisors (1).

444334409 is an equidigital number, since it uses as much as digits as its factorization.

444334409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 35.

The square root of 444334409 is about 21079.2411865323. The cubic root of 444334409 is about 763.0798436005.

The spelling of 444334409 in words is "four hundred forty-four million, three hundred thirty-four thousand, four hundred nine".