1006449443 has 4 divisors (see below), whose sum is σ = 1029855288. Its totient is φ = 983043600.

The previous prime is 1006449439. The next prime is 1006449481. The reversal of 1006449443 is 3449446001.

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

It is a cyclic number.

It is not a de Polignac number, because 1006449443 - 2² = 1006449439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1006449403) 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 3 ways as a sum of consecutive naturals, for example, 11702858 + ... + 11702943.

It is an arithmetic number, because the mean of its divisors is an integer number (257463822).

Almost surely, 2^1006449443 is an apocalyptic number.

1006449443 is a deficient number, since it is larger than the sum of its proper divisors (23405845).

1006449443 is an equidigital number, since it uses as much as digits as its factorization.

1006449443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23405844.

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 1006449443 is about 31724.5873574425. The cubic root of 1006449443 is about 1002.1452091205.

The spelling of 1006449443 in words is "one billion, six million, four hundred forty-nine thousand, four hundred forty-three".