450624449 has 6 divisors (see below), whose sum is σ = 495314610. Its totient is φ = 409658480.

The previous prime is 450624437. The next prime is 450624469. The reversal of 450624449 is 944426054.

It can be written as a sum of positive squares in only one way, i.e., 286963600 + 163660849 = 16940^2 + 12793^2 .

It is not a de Polignac number, because 450624449 - 2⁸ = 450624193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450624469) 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 5 ways as a sum of consecutive naturals, for example, 1861964 + ... + 1862205.

It is an arithmetic number, because the mean of its divisors is an integer number (82552435).

Almost surely, 2^450624449 is an apocalyptic number.

It is an amenable number.

450624449 is a deficient number, since it is larger than the sum of its proper divisors (44690161).

450624449 is a wasteful number, since it uses less digits than its factorization.

450624449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3724191 (or 3724180 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 450624449 is about 21227.9167371648. The cubic root of 450624449 is about 766.6637286802.

The spelling of 450624449 in words is "four hundred fifty million, six hundred twenty-four thousand, four hundred forty-nine".