447220224 has 320 divisors, whose sum is σ = 1537937280. Its totient is φ = 126812160.

The previous prime is 447220217. The next prime is 447220237. The reversal of 447220224 is 422022744.

It is a super-2 number, since 2×447220224² = 400011857509220352, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2585002 + ... + 2585174.

It is an arithmetic number, because the mean of its divisors is an integer number (4806054).

Almost surely, 2^447220224 is an apocalyptic number.

447220224 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 447220224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (768968640).

447220224 is an abundant number, since it is smaller than the sum of its proper divisors (1090717056).

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

447220224 is a wasteful number, since it uses less digits than its factorization.

447220224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 27.

The square root of 447220224 is about 21147.5819894379. The cubic root of 447220224 is about 764.7282695049.

Adding to 447220224 its reverse (422022744), we get a palindrome (869242968).

The spelling of 447220224 in words is "four hundred forty-seven million, two hundred twenty thousand, two hundred twenty-four".