1442462281 has 4 divisors (see below), whose sum is σ = 1553420932. Its totient is φ = 1331503632.

The previous prime is 1442462221. The next prime is 1442462309. The reversal of 1442462281 is 1822642441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1822642441 = 239 ⋅7626119.

It can be written as a sum of positive squares in 2 ways, for example, as 403367056 + 1039095225 = 20084^2 + 32235^2 .

It is a cyclic number.

It is not a de Polignac number, because 1442462281 - 2¹³ = 1442454089 is a prime.

It is a super-2 number, since 2×1442462281² = 4161394864215445922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1442462201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55479306 + ... + 55479331.

It is an arithmetic number, because the mean of its divisors is an integer number (388355233).

Almost surely, 2^1442462281 is an apocalyptic number.

It is an amenable number.

1442462281 is a deficient number, since it is larger than the sum of its proper divisors (110958651).

1442462281 is a wasteful number, since it uses less digits than its factorization.

1442462281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110958650.

The product of its digits is 24576, while the sum is 34.

The square root of 1442462281 is about 37979.7614658123. The cubic root of 1442462281 is about 1129.8865056870.

The spelling of 1442462281 in words is "one billion, four hundred forty-two million, four hundred sixty-two thousand, two hundred eighty-one".