448528861 has 4 divisors (see below), whose sum is σ = 489304224. Its totient is φ = 407753500.

The previous prime is 448528859. The next prime is 448528891. The reversal of 448528861 is 168825844.

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 not a de Polignac number, because 448528861 - 2¹ = 448528859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448528841) 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, 20387665 + ... + 20387686.

It is an arithmetic number, because the mean of its divisors is an integer number (122326056).

Almost surely, 2^448528861 is an apocalyptic number.

It is an amenable number.

448528861 is a deficient number, since it is larger than the sum of its proper divisors (40775363).

448528861 is a wasteful number, since it uses less digits than its factorization.

448528861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40775362.

The product of its digits is 491520, while the sum is 46.

The square root of 448528861 is about 21178.4999704889. The cubic root of 448528861 is about 765.4734483671.

The spelling of 448528861 in words is "four hundred forty-eight million, five hundred twenty-eight thousand, eight hundred sixty-one".