444231413 has 2 divisors, whose sum is σ = 444231414. Its totient is φ = 444231412.

The previous prime is 444231401. The next prime is 444231427. The reversal of 444231413 is 314132444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234763684 + 209467729 = 15322^2 + 14473^2 .

It is a cyclic number.

It is not a de Polignac number, because 444231413 - 2⁴ = 444231397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444231313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222115706 + 222115707.

It is an arithmetic number, because the mean of its divisors is an integer number (222115707).

Almost surely, 2^444231413 is an apocalyptic number.

It is an amenable number.

444231413 is a deficient number, since it is larger than the sum of its proper divisors (1).

444231413 is an equidigital number, since it uses as much as digits as its factorization.

444231413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 26.

The square root of 444231413 is about 21076.7979778713. The cubic root of 444231413 is about 763.0208788182.

Adding to 444231413 its reverse (314132444), we get a palindrome (758363857).

The spelling of 444231413 in words is "four hundred forty-four million, two hundred thirty-one thousand, four hundred thirteen".