1442240347 has 2 divisors, whose sum is σ = 1442240348. Its totient is φ = 1442240346.

The previous prime is 1442240291. The next prime is 1442240377. The reversal of 1442240347 is 7430422441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1442240347 - 2¹⁵ = 1442207579 is a prime.

It is a super-3 number, since 3×1442240347³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1442240377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721120173 + 721120174.

It is an arithmetic number, because the mean of its divisors is an integer number (721120174).

Almost surely, 2^1442240347 is an apocalyptic number.

1442240347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442240347 is an equidigital number, since it uses as much as digits as its factorization.

1442240347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 31.

The square root of 1442240347 is about 37976.8396131116. The cubic root of 1442240347 is about 1129.8285554499.

Adding to 1442240347 its reverse (7430422441), we get a palindrome (8872662788).

The spelling of 1442240347 in words is "one billion, four hundred forty-two million, two hundred forty thousand, three hundred forty-seven".