448598021 has 4 divisors (see below), whose sum is σ = 448686252. Its totient is φ = 448509792.

The previous prime is 448598009. The next prime is 448598039. The reversal of 448598021 is 120895844.

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 166693921 + 281904100 = 12911^2 + 16790^2 .

It is a cyclic number.

It is not a de Polignac number, because 448598021 - 2²² = 444403717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 448598021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448598041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35990 + ... + 46823.

It is an arithmetic number, because the mean of its divisors is an integer number (112171563).

Almost surely, 2^448598021 is an apocalyptic number.

It is an amenable number.

448598021 is a deficient number, since it is larger than the sum of its proper divisors (88231).

448598021 is an equidigital number, since it uses as much as digits as its factorization.

448598021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88230.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 448598021 is about 21180.1326955239. The cubic root of 448598021 is about 765.5127898882.

The spelling of 448598021 in words is "four hundred forty-eight million, five hundred ninety-eight thousand, twenty-one".