1006449439 has 2 divisors, whose sum is σ = 1006449440. Its totient is φ = 1006449438.

The previous prime is 1006449403. The next prime is 1006449481. The reversal of 1006449439 is 9349446001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1006449439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1006449239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503224719 + 503224720.

It is an arithmetic number, because the mean of its divisors is an integer number (503224720).

Almost surely, 2^1006449439 is an apocalyptic number.

1006449439 is a deficient number, since it is larger than the sum of its proper divisors (1).

1006449439 is an equidigital number, since it uses as much as digits as its factorization.

1006449439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 1006449439 is about 31724.5872943999. The cubic root of 1006449439 is about 1002.1452077928.

The spelling of 1006449439 in words is "one billion, six million, four hundred forty-nine thousand, four hundred thirty-nine".