449427521 has 16 divisors (see below), whose sum is σ = 497778048. Its totient is φ = 403603200.

The previous prime is 449427509. The next prime is 449427523. The reversal of 449427521 is 125724944.

It is a cyclic number.

It is not a de Polignac number, because 449427521 - 2⁶ = 449427457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (449427523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190811 + ... + 193151.

It is an arithmetic number, because the mean of its divisors is an integer number (31111128).

Almost surely, 2^449427521 is an apocalyptic number.

It is an amenable number.

449427521 is a deficient number, since it is larger than the sum of its proper divisors (48350527).

449427521 is a wasteful number, since it uses less digits than its factorization.

449427521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2872.

The product of its digits is 80640, while the sum is 38.

The square root of 449427521 is about 21199.7056819193. The cubic root of 449427521 is about 765.9843344514.

The spelling of 449427521 in words is "four hundred forty-nine million, four hundred twenty-seven thousand, five hundred twenty-one".