444344261 has 2 divisors, whose sum is σ = 444344262. Its totient is φ = 444344260.

The previous prime is 444344239. The next prime is 444344311. The reversal of 444344261 is 162443444.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 387341761 + 57002500 = 19681^2 + 7550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444344261 is a prime.

It is a super-2 number, since 2×444344261² = 394883644567272242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_23569034 and since 444344261 and 23569034 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444344161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222172130 + 222172131.

It is an arithmetic number, because the mean of its divisors is an integer number (222172131).

Almost surely, 2^444344261 is an apocalyptic number.

It is an amenable number.

444344261 is a deficient number, since it is larger than the sum of its proper divisors (1).

444344261 is an equidigital number, since it uses as much as digits as its factorization.

444344261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 32.

The square root of 444344261 is about 21079.4748748635. The cubic root of 444344261 is about 763.0854833520.

The spelling of 444344261 in words is "four hundred forty-four million, three hundred forty-four thousand, two hundred sixty-one".