1442216329 has 2 divisors, whose sum is σ = 1442216330. Its totient is φ = 1442216328.

The previous prime is 1442216327. The next prime is 1442216359. The reversal of 1442216329 is 9236122441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 914457600 + 527758729 = 30240^2 + 22973^2 .

It is a cyclic number.

It is not a de Polignac number, because 1442216329 - 2¹ = 1442216327 is a prime.

Together with 1442216327, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1442216294 and 1442216303.

It is not a weakly prime, because it can be changed into another prime (1442216327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721108164 + 721108165.

It is an arithmetic number, because the mean of its divisors is an integer number (721108165).

Almost surely, 2^1442216329 is an apocalyptic number.

It is an amenable number.

1442216329 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442216329 is an equidigital number, since it uses as much as digits as its factorization.

1442216329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 34.

The square root of 1442216329 is about 37976.5233927488. The cubic root of 1442216329 is about 1129.8222836398.

The spelling of 1442216329 in words is "one billion, four hundred forty-two million, two hundred sixteen thousand, three hundred twenty-nine".