447284556 has 18 divisors (see below), whose sum is σ = 1130636052. Its totient is φ = 149094840.

The previous prime is 447284507. The next prime is 447284597. The reversal of 447284556 is 655482744.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×447284556² = 400126948072234272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6212250 + ... + 6212321.

It is an arithmetic number, because the mean of its divisors is an integer number (62813114).

Almost surely, 2^447284556 is an apocalyptic number.

It is an amenable number.

447284556 is an abundant number, since it is smaller than the sum of its proper divisors (683351496).

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

447284556 is a wasteful number, since it uses less digits than its factorization.

447284556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12424581 (or 12424576 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 45.

The square root of 447284556 is about 21149.1029597002. The cubic root of 447284556 is about 764.7649361087.

It can be divided in two parts, 44728 and 4556, that added together give a square (49284 = 222²).

The spelling of 447284556 in words is "four hundred forty-seven million, two hundred eighty-four thousand, five hundred fifty-six".