447228 has 48 divisors (see below), whose sum is σ = 1199520. Its totient is φ = 144000.

The previous prime is 447221. The next prime is 447233. The reversal of 447228 is 822744.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447221) 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, 4378 + ... + 4478.

It is an arithmetic number, because the mean of its divisors is an integer number (24990).

2⁴⁴⁷²²⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 447228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (599760).

447228 is an abundant number, since it is smaller than the sum of its proper divisors (752292).

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

447228 is a wasteful number, since it uses less digits than its factorization.

447228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 147 counting only the distinct ones).

The product of its digits is 3584, while the sum is 27.

The square root of 447228 is about 668.7510747655. The cubic root of 447228 is about 76.4732701693.

The spelling of 447228 in words is "four hundred forty-seven thousand, two hundred twenty-eight".