447473720 has 32 divisors (see below), whose sum is σ = 1007974800. Its totient is φ = 178783488.

The previous prime is 447473701. The next prime is 447473729. The reversal of 447473720 is 27374744.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447473729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31511 + ... + 43449.

Almost surely, 2^447473720 is an apocalyptic number.

447473720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

447473720 is an abundant number, since it is smaller than the sum of its proper divisors (560501080).

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

447473720 is a wasteful number, since it uses less digits than its factorization.

447473720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12887 (or 12883 counting only the distinct ones).

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

The square root of 447473720 is about 21153.5746388170. The cubic root of 447473720 is about 764.8727314733.

The spelling of 447473720 in words is "four hundred forty-seven million, four hundred seventy-three thousand, seven hundred twenty".