1441448381 has 2 divisors, whose sum is σ = 1441448382. Its totient is φ = 1441448380.

The previous prime is 1441448339. The next prime is 1441448401. The reversal of 1441448381 is 1838441441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1320668281 + 120780100 = 36341^2 + 10990^2 .

It is a cyclic number.

It is not a de Polignac number, because 1441448381 - 2¹⁴ = 1441431997 is a prime.

It is a super-2 number, since 2×1441448381² = 4155546870175042322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1441441381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720724190 + 720724191.

It is an arithmetic number, because the mean of its divisors is an integer number (720724191).

Almost surely, 2^1441448381 is an apocalyptic number.

It is an amenable number.

1441448381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1441448381 is an equidigital number, since it uses as much as digits as its factorization.

1441448381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 49152, while the sum is 38.

The square root of 1441448381 is about 37966.4112209727. The cubic root of 1441448381 is about 1129.6217129876.

The spelling of 1441448381 in words is "one billion, four hundred forty-one million, four hundred forty-eight thousand, three hundred eighty-one".