1442843378 has 16 divisors (see below), whose sum is σ = 2208256344. Its totient is φ = 706905600.

The previous prime is 1442843377. The next prime is 1442843393. The reversal of 1442843378 is 8733482441.

It can be written as a sum of positive squares in 4 ways, for example, as 1376632609 + 66210769 = 37103^2 + 8137^2 .

It is not an unprimeable number, because it can be changed into a prime (1442843377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17225 + ... + 56412.

Almost surely, 2^1442843378 is an apocalyptic number.

1442843378 is a deficient number, since it is larger than the sum of its proper divisors (765412966).

1442843378 is a wasteful number, since it uses less digits than its factorization.

1442843378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73837.

The product of its digits is 516096, while the sum is 44.

The square root of 1442843378 is about 37984.7782407638. The cubic root of 1442843378 is about 1129.9860018628.

The spelling of 1442843378 in words is "one billion, four hundred forty-two million, eight hundred forty-three thousand, three hundred seventy-eight".