447700228 has 24 divisors (see below), whose sum is σ = 797620824. Its totient is φ = 219820800.

The previous prime is 447700223. The next prime is 447700261. The reversal of 447700228 is 822007744.

It can be written as a sum of positive squares in 4 ways, for example, as 155700484 + 291999744 = 12478^2 + 17088^2 .

It is a junction number, because it is equal to n+sod(n) for n = 447700193 and 447700202.

It is not an unprimeable number, because it can be changed into a prime (447700223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208038 + ... + 210178.

It is an arithmetic number, because the mean of its divisors is an integer number (33234201).

Almost surely, 2^447700228 is an apocalyptic number.

It is an amenable number.

447700228 is a deficient number, since it is larger than the sum of its proper divisors (349920596).

447700228 is a wasteful number, since it uses less digits than its factorization.

447700228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063 (or 3061 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 447700228 is about 21158.9278556358. The cubic root of 447700228 is about 765.0017674073.

The spelling of 447700228 in words is "four hundred forty-seven million, seven hundred thousand, two hundred twenty-eight".