448791449 has 8 divisors (see below), whose sum is σ = 475763400. Its totient is φ = 421883136.

The previous prime is 448791401. The next prime is 448791451. The reversal of 448791449 is 944197844.

It can be written as a sum of positive squares in 4 ways, for example, as 126337600 + 322453849 = 11240^2 + 17957^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 448791449 - 2¹⁶ = 448725913 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 448791397 and 448791406.

It is not an unprimeable number, because it can be changed into a prime (448791149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 974 + ... + 29975.

It is an arithmetic number, because the mean of its divisors is an integer number (59470425).

Almost surely, 2^448791449 is an apocalyptic number.

It is an amenable number.

448791449 is a deficient number, since it is larger than the sum of its proper divisors (26971951).

448791449 is a wasteful number, since it uses less digits than its factorization.

448791449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31819.

The product of its digits is 1161216, while the sum is 50.

The square root of 448791449 is about 21184.6984637497. The cubic root of 448791449 is about 765.6227995361.

The spelling of 448791449 in words is "four hundred forty-eight million, seven hundred ninety-one thousand, four hundred forty-nine".