449838729 has 12 divisors (see below), whose sum is σ = 651182532. Its totient is φ = 299239200.

The previous prime is 449838709. The next prime is 449838773. The reversal of 449838729 is 927838944.

It can be written as a sum of positive squares in 2 ways, for example, as 205635600 + 244203129 = 14340^2 + 15627^2 .

It is not a de Polignac number, because 449838729 - 2¹⁶ = 449773193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (449838709) 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 11 ways as a sum of consecutive naturals, for example, 50062 + ... + 58359.

It is an arithmetic number, because the mean of its divisors is an integer number (54265211).

Almost surely, 2^449838729 is an apocalyptic number.

It is an amenable number.

449838729 is a deficient number, since it is larger than the sum of its proper divisors (201343803).

449838729 is a wasteful number, since it uses less digits than its factorization.

449838729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108888 (or 108885 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The square root of 449838729 is about 21209.4019010438. The cubic root of 449838729 is about 766.2178781308.

The spelling of 449838729 in words is "four hundred forty-nine million, eight hundred thirty-eight thousand, seven hundred twenty-nine".