448213809 has 16 divisors (see below), whose sum is σ = 602819712. Its totient is φ = 296220288.

The previous prime is 448213807. The next prime is 448213837. The reversal of 448213809 is 908312844.

It is not a de Polignac number, because 448213809 - 2¹ = 448213807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (448213807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183772 + ... + 186194.

It is an arithmetic number, because the mean of its divisors is an integer number (37676232).

Almost surely, 2^448213809 is an apocalyptic number.

It is an amenable number.

448213809 is a deficient number, since it is larger than the sum of its proper divisors (154605903).

448213809 is a wasteful number, since it uses less digits than its factorization.

448213809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 448213809 is about 21171.0606489141. The cubic root of 448213809 is about 765.2941805062.

The spelling of 448213809 in words is "four hundred forty-eight million, two hundred thirteen thousand, eight hundred nine".