448494709 has 4 divisors (see below), whose sum is σ = 482994316. Its totient is φ = 413995104.

The previous prime is 448494671. The next prime is 448494719. The reversal of 448494709 is 907494844.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 164403684 + 284091025 = 12822^2 + 16855^2 .

It is a cyclic number.

It is not a de Polignac number, because 448494709 - 2⁹ = 448494197 is a prime.

It is a super-2 number, since 2×448494709² = 402295008001989362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448494719) 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 3 ways as a sum of consecutive naturals, for example, 17249784 + ... + 17249809.

It is an arithmetic number, because the mean of its divisors is an integer number (120748579).

Almost surely, 2^448494709 is an apocalyptic number.

It is an amenable number.

448494709 is a deficient number, since it is larger than the sum of its proper divisors (34499607).

448494709 is a wasteful number, since it uses less digits than its factorization.

448494709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34499606.

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 448494709 is about 21177.6936657418. The cubic root of 448494709 is about 765.4540195819.

The spelling of 448494709 in words is "four hundred forty-eight million, four hundred ninety-four thousand, seven hundred nine".