448020217 has 8 divisors (see below), whose sum is σ = 471326400. Its totient is φ = 425237904.

The previous prime is 448020211. The next prime is 448020229. The reversal of 448020217 is 712020844.

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

It is not a de Polignac number, because 448020217 - 2¹⁹ = 447495929 is a prime.

It is a super-2 number, since 2×448020217² = 401444229681454178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (448020211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129213 + ... + 132634.

It is an arithmetic number, because the mean of its divisors is an integer number (58915800).

Almost surely, 2^448020217 is an apocalyptic number.

It is an amenable number.

448020217 is a deficient number, since it is larger than the sum of its proper divisors (23306183).

448020217 is a wasteful number, since it uses less digits than its factorization.

448020217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261935.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 448020217 is about 21166.4880648633. The cubic root of 448020217 is about 765.1839829744.

The spelling of 448020217 in words is "four hundred forty-eight million, twenty thousand, two hundred seventeen".