447280 has 20 divisors (see below), whose sum is σ = 1040112. Its totient is φ = 178880.

The previous prime is 447263. The next prime is 447311. The reversal of 447280 is 82744.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

447280 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2716 + ... + 2875.

2⁴⁴⁷²⁸⁰ is an apocalyptic number.

447280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

447280 is an abundant number, since it is smaller than the sum of its proper divisors (592832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

447280 is a wasteful number, since it uses less digits than its factorization.

447280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5604 (or 5598 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 447280 is about 668.7899520776. The cubic root of 447280 is about 76.4762339491.

It can be divided in two parts, 447 and 280, that added together give a palindrome (727).

The spelling of 447280 in words is "four hundred forty-seven thousand, two hundred eighty".