1442556361 has 9 divisors (see below), whose sum is σ = 1523238381. Its totient is φ = 1365948684.

The previous prime is 1442556331. The next prime is 1442556397. The reversal of 1442556361 is 1636552441.

The square root of 1442556361 is 37981.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1442556361 - 2¹¹ = 1442554313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1442556361.

It is not an unprimeable number, because it can be changed into a prime (1442556331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 720640 + ... + 722638.

It is an arithmetic number, because the mean of its divisors is an integer number (169248709).

Almost surely, 2^1442556361 is an apocalyptic number.

1442556361 is the 37981-st square number.

1442556361 is the 18991-st centered octagonal number.

It is an amenable number.

1442556361 is a deficient number, since it is larger than the sum of its proper divisors (80682020).

1442556361 is an frugal number, since it uses more digits than its factorization.

1442556361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4036 (or 2018 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The cubic root of 1442556361 is about 1129.9110695670.

The spelling of 1442556361 in words is "one billion, four hundred forty-two million, five hundred fifty-six thousand, three hundred sixty-one".