447430816 has 24 divisors (see below), whose sum is σ = 1006719840. Its totient is φ = 191755968.

The previous prime is 447430811. The next prime is 447430817. The reversal of 447430816 is 618034744.

It is not an unprimeable number, because it can be changed into a prime (447430811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 998506 + ... + 998953.

It is an arithmetic number, because the mean of its divisors is an integer number (41946660).

Almost surely, 2^447430816 is an apocalyptic number.

It is an amenable number.

447430816 is an abundant number, since it is smaller than the sum of its proper divisors (559289024).

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

447430816 is a wasteful number, since it uses less digits than its factorization.

447430816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997476 (or 1997468 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 447430816 is about 21152.5605069457. The cubic root of 447430816 is about 764.8482852342.

The spelling of 447430816 in words is "four hundred forty-seven million, four hundred thirty thousand, eight hundred sixteen".