1442286641 has 4 divisors (see below), whose sum is σ = 1450623732. Its totient is φ = 1433949552.

The previous prime is 1442286631. The next prime is 1442286673. The reversal of 1442286641 is 1466822441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1394275600 + 48011041 = 37340^2 + 6929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1442286641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1442286595 and 1442286604.

It is not an unprimeable number, because it can be changed into a prime (1442286631) 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, 4168286 + ... + 4168631.

It is an arithmetic number, because the mean of its divisors is an integer number (362655933).

Almost surely, 2^1442286641 is an apocalyptic number.

It is an amenable number.

1442286641 is a deficient number, since it is larger than the sum of its proper divisors (8337091).

1442286641 is an equidigital number, since it uses as much as digits as its factorization.

1442286641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8337090.

The product of its digits is 73728, while the sum is 38.

The square root of 1442286641 is about 37977.4491112818. The cubic root of 1442286641 is about 1129.8406439860.

The spelling of 1442286641 in words is "one billion, four hundred forty-two million, two hundred eighty-six thousand, six hundred forty-one".