447999428 has 12 divisors (see below), whose sum is σ = 818086080. Its totient is φ = 214260552.

The previous prime is 447999379. The next prime is 447999437. The reversal of 447999428 is 824999744.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2434688 + ... + 2434871.

It is an arithmetic number, because the mean of its divisors is an integer number (68173840).

Almost surely, 2^447999428 is an apocalyptic number.

It is an amenable number.

447999428 is a deficient number, since it is larger than the sum of its proper divisors (370086652).

447999428 is a wasteful number, since it uses less digits than its factorization.

447999428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4869586 (or 4869584 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 56.

The square root of 447999428 is about 21165.9969762825. The cubic root of 447999428 is about 765.1721474551.

The spelling of 447999428 in words is "four hundred forty-seven million, nine hundred ninety-nine thousand, four hundred twenty-eight".