447253478 has 20 divisors (see below), whose sum is σ = 782655420. Its totient is φ = 191678004.

The previous prime is 447253463. The next prime is 447253481. The reversal of 447253478 is 874352744.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 41768 + ... + 51371.

It is an arithmetic number, because the mean of its divisors is an integer number (39132771).

Almost surely, 2^447253478 is an apocalyptic number.

447253478 is a deficient number, since it is larger than the sum of its proper divisors (335401942).

447253478 is an frugal number, since it uses more digits than its factorization.

447253478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93169 (or 93148 counting only the distinct ones).

The product of its digits is 752640, while the sum is 44.

The square root of 447253478 is about 21148.3682112829. The cubic root of 447253478 is about 764.7472233613.

The spelling of 447253478 in words is "four hundred forty-seven million, two hundred fifty-three thousand, four hundred seventy-eight".