1442744269 has 2 divisors, whose sum is σ = 1442744270. Its totient is φ = 1442744268.

The previous prime is 1442744243. The next prime is 1442744273. The reversal of 1442744269 is 9624472441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1228502500 + 214241769 = 35050^2 + 14637^2 .

It is an emirp because it is prime and its reverse (9624472441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442744269 is a prime.

It is a super-2 number, since 2×1442744269² = 4163022051464688722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442744279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721372134 + 721372135.

It is an arithmetic number, because the mean of its divisors is an integer number (721372135).

Almost surely, 2^1442744269 is an apocalyptic number.

It is an amenable number.

1442744269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442744269 is an equidigital number, since it uses as much as digits as its factorization.

1442744269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 43.

The square root of 1442744269 is about 37983.4736299881. The cubic root of 1442744269 is about 1129.9601283345.

The spelling of 1442744269 in words is "one billion, four hundred forty-two million, seven hundred forty-four thousand, two hundred sixty-nine".