4449939443 has 2 divisors, whose sum is σ = 4449939444. Its totient is φ = 4449939442.

The previous prime is 4449939407. The next prime is 4449939523. The reversal of 4449939443 is 3449399444.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4449939443 - 2¹⁴ = 4449923059 is a prime.

It is a super-2 number, since 2×4449939443² = 39603922092734300498, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (4449933443) 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 as a sum of consecutive naturals, namely, 2224969721 + 2224969722.

It is an arithmetic number, because the mean of its divisors is an integer number (2224969722).

Almost surely, 2^4449939443 is an apocalyptic number.

4449939443 is a deficient number, since it is larger than the sum of its proper divisors (1).

4449939443 is an equidigital number, since it uses as much as digits as its factorization.

4449939443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6718464, while the sum is 53.

The square root of 4449939443 is about 66707.8664251826. The cubic root of 4449939443 is about 1644.8186954156.

The spelling of 4449939443 in words is "four billion, four hundred forty-nine million, nine hundred thirty-nine thousand, four hundred forty-three".