447432 has 32 divisors (see below), whose sum is σ = 1135680. Its totient is φ = 146880.

The previous prime is 447427. The next prime is 447439. The reversal of 447432 is 234744.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (447439) by changing a digit.

447432 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2382 + ... + 2562.

It is an arithmetic number, because the mean of its divisors is an integer number (35490).

2⁴⁴⁷⁴³² is an apocalyptic number.

It is an amenable number.

447432 is an abundant number, since it is smaller than the sum of its proper divisors (688248).

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

447432 is a wasteful number, since it uses less digits than its factorization.

447432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 289 counting only the distinct ones).

The product of its digits is 2688, while the sum is 24.

The square root of 447432 is about 668.9035804957. The cubic root of 447432 is about 76.4848959886.

The spelling of 447432 in words is "four hundred forty-seven thousand, four hundred thirty-two".