1442744279 has 2 divisors, whose sum is σ = 1442744280. Its totient is φ = 1442744278.

The previous prime is 1442744273. The next prime is 1442744393. The reversal of 1442744279 is 9724472441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1442744279 - 2²⁸ = 1174308823 is a prime.

It is a super-2 number, since 2×1442744279² = 4163022109174459682, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442744273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721372139 + 721372140.

It is an arithmetic number, because the mean of its divisors is an integer number (721372140).

Almost surely, 2^1442744279 is an apocalyptic number.

1442744279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442744279 is an equidigital number, since it uses as much as digits as its factorization.

1442744279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 44.

The square root of 1442744279 is about 37983.4737616243. The cubic root of 1442744279 is about 1129.9601309451.

The spelling of 1442744279 in words is "one billion, four hundred forty-two million, seven hundred forty-four thousand, two hundred seventy-nine".