447257316 has 48 divisors (see below), whose sum is σ = 1142765568. Its totient is φ = 135021600.

The previous prime is 447257231. The next prime is 447257339. The reversal of 447257316 is 613752744.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29521 + ... + 42023.

It is an arithmetic number, because the mean of its divisors is an integer number (23807616).

Almost surely, 2^447257316 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 447257316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (571382784).

447257316 is an abundant number, since it is smaller than the sum of its proper divisors (695508252).

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

447257316 is a wasteful number, since it uses less digits than its factorization.

447257316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12792 (or 12790 counting only the distinct ones).

The product of its digits is 141120, while the sum is 39.

The square root of 447257316 is about 21148.4589509496. The cubic root of 447257316 is about 764.7494108542.

The spelling of 447257316 in words is "four hundred forty-seven million, two hundred fifty-seven thousand, three hundred sixteen".