1441440397 has 2 divisors, whose sum is σ = 1441440398. Its totient is φ = 1441440396.

The previous prime is 1441440391. The next prime is 1441440419. The reversal of 1441440397 is 7930441441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1430806276 + 10634121 = 37826^2 + 3261^2 .

It is a cyclic number.

It is not a de Polignac number, because 1441440397 - 2¹⁵ = 1441407629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1441440391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720720198 + 720720199.

It is an arithmetic number, because the mean of its divisors is an integer number (720720199).

Almost surely, 2^1441440397 is an apocalyptic number.

It is an amenable number.

1441440397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1441440397 is an equidigital number, since it uses as much as digits as its factorization.

1441440397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 1441440397 is about 37966.3060752557. The cubic root of 1441440397 is about 1129.6196273732.

The spelling of 1441440397 in words is "one billion, four hundred forty-one million, four hundred forty thousand, three hundred ninety-seven".