1442163816 has 24 divisors (see below), whose sum is σ = 3905860530. Its totient is φ = 480721248.

The previous prime is 1442163809. The next prime is 1442163829. The reversal of 1442163816 is 6183612441.

1442163816 is a `hidden beast` number, since 1 + 4 + 4 + 2 + 1 + 638 + 16 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1171692900 + 270470916 = 34230^2 + 16446^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 10014955 + ... + 10015098.

Almost surely, 2^1442163816 is an apocalyptic number.

It is an amenable number.

1442163816 is an abundant number, since it is smaller than the sum of its proper divisors (2463696714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1442163816 is a wasteful number, since it uses less digits than its factorization.

1442163816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20030065 (or 20030058 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 1442163816 is about 37975.8319987858. The cubic root of 1442163816 is about 1129.8085706998.

The spelling of 1442163816 in words is "one billion, four hundred forty-two million, one hundred sixty-three thousand, eight hundred sixteen".