444121459 has 2 divisors, whose sum is σ = 444121460. Its totient is φ = 444121458.

The previous prime is 444121441. The next prime is 444121499. The reversal of 444121459 is 954121444.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 444121459 - 2¹¹ = 444119411 is a prime.

It is not a weakly prime, because it can be changed into another prime (444121439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222060729 + 222060730.

It is an arithmetic number, because the mean of its divisors is an integer number (222060730).

Almost surely, 2^444121459 is an apocalyptic number.

444121459 is a deficient number, since it is larger than the sum of its proper divisors (1).

444121459 is an equidigital number, since it uses as much as digits as its factorization.

444121459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 34.

The square root of 444121459 is about 21074.1894031538. The cubic root of 444121459 is about 762.9579205506.

The spelling of 444121459 in words is "four hundred forty-four million, one hundred twenty-one thousand, four hundred fifty-nine".