448468021 has 4 divisors (see below), whose sum is σ = 454784544. Its totient is φ = 442151500.

The previous prime is 448467967. The next prime is 448468043. The reversal of 448468021 is 120864844.

It is the 8646-th star number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 448468021 - 2⁷ = 448467893 is a prime.

It is a super-2 number, since 2×448468021² = 402247131719312882, 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 (448468081) 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, 3158155 + ... + 3158296.

It is an arithmetic number, because the mean of its divisors is an integer number (113696136).

Almost surely, 2^448468021 is an apocalyptic number.

It is an amenable number.

448468021 is a deficient number, since it is larger than the sum of its proper divisors (6316523).

448468021 is an equidigital number, since it uses as much as digits as its factorization.

448468021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6316522.

The product of its (nonzero) digits is 49152, while the sum is 37.

The square root of 448468021 is about 21177.0635594267. The cubic root of 448468021 is about 765.4388363168.

The spelling of 448468021 in words is "four hundred forty-eight million, four hundred sixty-eight thousand, twenty-one".