447423720 has 64 divisors (see below), whose sum is σ = 1344669120. Its totient is φ = 119099904.

The previous prime is 447423719. The next prime is 447423749. The reversal of 447423720 is 27324744.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71019 + ... + 77061.

It is an arithmetic number, because the mean of its divisors is an integer number (21010455).

Almost surely, 2^447423720 is an apocalyptic number.

447423720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

447423720 is an abundant number, since it is smaller than the sum of its proper divisors (897245400).

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

447423720 is a wasteful number, since it uses less digits than its factorization.

447423720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6674 (or 6670 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 33.

The square root of 447423720 is about 21152.3927724501. The cubic root of 447423720 is about 764.8442418589.

The spelling of 447423720 in words is "four hundred forty-seven million, four hundred twenty-three thousand, seven hundred twenty".