447477320 has 64 divisors (see below), whose sum is σ = 1022785920. Its totient is φ = 176177664.

The previous prime is 447477311. The next prime is 447477323. The reversal of 447477320 is 23774744.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (447477323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1289387 + ... + 1289733.

It is an arithmetic number, because the mean of its divisors is an integer number (15981030).

Almost surely, 2^447477320 is an apocalyptic number.

447477320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

447477320 is an abundant number, since it is smaller than the sum of its proper divisors (575308600).

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

447477320 is a wasteful number, since it uses less digits than its factorization.

447477320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774 (or 770 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 38.

The square root of 447477320 is about 21153.6597306471. The cubic root of 447477320 is about 764.8747826436.

The spelling of 447477320 in words is "four hundred forty-seven million, four hundred seventy-seven thousand, three hundred twenty".