448381533 has 16 divisors (see below), whose sum is σ = 609860160. Its totient is φ = 292943616.

The previous prime is 448381529. The next prime is 448381567. The reversal of 448381533 is 335183844.

It is not a de Polignac number, because 448381533 - 2² = 448381529 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 448381491 and 448381500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448381033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55891 + ... + 63407.

It is an arithmetic number, because the mean of its divisors is an integer number (38116260).

Almost surely, 2^448381533 is an apocalyptic number.

It is an amenable number.

448381533 is a deficient number, since it is larger than the sum of its proper divisors (161478627).

448381533 is a wasteful number, since it uses less digits than its factorization.

448381533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7916.

The product of its digits is 138240, while the sum is 39.

The square root of 448381533 is about 21175.0214403669. The cubic root of 448381533 is about 765.3896276575.

The spelling of 448381533 in words is "four hundred forty-eight million, three hundred eighty-one thousand, five hundred thirty-three".