1442841329 has 2 divisors, whose sum is σ = 1442841330. Its totient is φ = 1442841328.

The previous prime is 1442841311. The next prime is 1442841331. The reversal of 1442841329 is 9231482441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 927324304 + 515517025 = 30452^2 + 22705^2 .

It is a cyclic number.

It is not a de Polignac number, because 1442841329 - 2²⁰ = 1441792753 is a prime.

It is a super-2 number, since 2×1442841329² = 4163582201340972482, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1442841331, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1442841292 and 1442841301.

It is not a weakly prime, because it can be changed into another prime (1442841349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721420664 + 721420665.

It is an arithmetic number, because the mean of its divisors is an integer number (721420665).

Almost surely, 2^1442841329 is an apocalyptic number.

It is an amenable number.

1442841329 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442841329 is an equidigital number, since it uses as much as digits as its factorization.

1442841329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 38.

The square root of 1442841329 is about 37984.7512694239. The cubic root of 1442841329 is about 1129.9854669601.

The spelling of 1442841329 in words is "one billion, four hundred forty-two million, eight hundred forty-one thousand, three hundred twenty-nine".