448642681 has 8 divisors (see below), whose sum is σ = 460080000. Its totient is φ = 437347680.

The previous prime is 448642651. The next prime is 448642717. The reversal of 448642681 is 186246844.

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 448642681 - 2⁷ = 448642553 is a prime.

It is a super-2 number, since 2×448642681² = 402560510429735522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (448642651) 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, 29181 + ... + 41818.

It is an arithmetic number, because the mean of its divisors is an integer number (57510000).

Almost surely, 2^448642681 is an apocalyptic number.

It is an amenable number.

448642681 is a deficient number, since it is larger than the sum of its proper divisors (11437319).

448642681 is an equidigital number, since it uses as much as digits as its factorization.

448642681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71159.

The product of its digits is 294912, while the sum is 43.

The square root of 448642681 is about 21181.1869591862. The cubic root of 448642681 is about 765.5381924871.

The spelling of 448642681 in words is "four hundred forty-eight million, six hundred forty-two thousand, six hundred eighty-one".