449809836 has 48 divisors (see below), whose sum is σ = 1240861440. Its totient is φ = 124084800.

The previous prime is 449809831. The next prime is 449809847. The reversal of 449809836 is 638908944.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (449809831) 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 15 ways as a sum of consecutive naturals, for example, 89890 + ... + 94761.

It is an arithmetic number, because the mean of its divisors is an integer number (25851280).

Almost surely, 2^449809836 is an apocalyptic number.

It is an amenable number.

449809836 is an abundant number, since it is smaller than the sum of its proper divisors (791051604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

449809836 is a wasteful number, since it uses less digits than its factorization.

449809836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184694 (or 184692 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 449809836 is about 21208.7207535014. The cubic root of 449809836 is about 766.2014731352.

The spelling of 449809836 in words is "four hundred forty-nine million, eight hundred nine thousand, eight hundred thirty-six".