1442220413 has 2 divisors, whose sum is σ = 1442220414. Its totient is φ = 1442220412.

The previous prime is 1442220401. The next prime is 1442220421. The reversal of 1442220413 is 3140222441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1391140804 + 51079609 = 37298^2 + 7147^2 .

It is an emirp because it is prime and its reverse (3140222441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1442220413 - 2⁶ = 1442220349 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442220433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721110206 + 721110207.

It is an arithmetic number, because the mean of its divisors is an integer number (721110207).

Almost surely, 2^1442220413 is an apocalyptic number.

It is an amenable number.

1442220413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442220413 is an equidigital number, since it uses as much as digits as its factorization.

1442220413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1442220413 is about 37976.5771627723. The cubic root of 1442220413 is about 1129.8233500979.

Adding to 1442220413 its reverse (3140222441), we get a palindrome (4582442854).

The spelling of 1442220413 in words is "one billion, four hundred forty-two million, two hundred twenty thousand, four hundred thirteen".